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<div class="SectionHeader MainTitle"><a name="TopOfFile"></a>LDView Help</div>
<p></p>
<div class="SectionHeader">Contents</div>
<ul>
<li><a href="#Intro">Introduction</a></li>
<li><a href="#MacNotes">LDView on macOS</a></li>
<li><a href="#LDrawLibrary">LDraw Parts Library</a></li>
<li><a href="#MouseControl">Mouse and Keyboard Control</a>
<ul>
<li><a href="#ExamineMode">Examine Mode</a></li>
<li><a href="#FlyMode">Fly-through Mode</a></li>
<li><a href="#WalkMode">Walk Mode</a></li>
</ul></li>
<li><a href="#StepSupport">Step Support</a></li>
<li><a href="#Menus">Menus</a>
<ul>
<li><a href="#FileMenu">File Menu</a></li>
<li><a href="#EditMenu">Edit Menu</a></li>
<li><a href="#ViewMenu">View Menu</a></li>
<li><a href="#StepMenu">Step Menu</a></li>
<li><a href="#ToolsMenu">Tools Menu</a></li>
<li><a href="#HelpMenu">Help Menu</a></li>
</ul></li>
<li><a href="#Toolbar">Toolbar</a></li>
<li><a href="#Fullscreen">Fullscreen Mode</a></li>
<li><a href="#SaveSnapshotOptions">Save Snapshot Options</a></li>
<li><a href="#Export">Exporting</a></li>
<li><a href="#CameraLocDialog">Camera Location Dialog</a></li>
<li><a href="#RotationCenterDialog">Rotation Center Dialog</a></li>
<li><a href="#LatLonDialog">Latitude/Longitude Dialog</a></li>
<li><a href="#ErrorWindow">Errors & Warnings Window</a></li>
<li><a href="#PartsListDialog">Parts List Dialog</a></li>
<li><a href="#ModelTreeDialog">Model Tree Dialog</a></li>
<li><a href="#MPDDialog">MPD Model Selection Dialog</a></li>
<li><a href="#Prefs">Preferences</a>
<ul>
<li><a href="#GeneralTab">General Tab</a>
<ul>
<li><a href="#GeneralAABox">Antialiasing Box</a></li>
<li><a href="#GeneralCustomConfigBox">Custom Config Box</a></li>
<li><a href="#GeneralColorsBox">Colors Box</a></li>
<li><a href="#GeneralMiscBox">Misc Box</a></li>
</ul></li>
<li><a href="#GeometryTab">Geometry Tab</a>
<ul>
<li><a href="#GeometryModelBox">Model Box</a></li>
<li><a href="#GeometryWireframeBox">Wireframe Box</a></li>
<li><a href="#GeometryBFCBox">BFC Box</a></li>
<li><a href="#GeometryEdgeLinesBox">Edge Lines Box</a></li>
</ul></li>
<li><a href="#LDrawTab">LDraw Tab (Mac Only)</a>
</li>
<li><a href="#GeometryTab">Geometry Tab</a>
<ul>
<li><a href="#GeometryModelBox">Model Box</a></li>
<li><a href="#GeometryWireframeBox">Wireframe Box</a></li>
<li><a href="#GeometryBFCBox">BFC Box</a></li>
<li><a href="#GeometryEdgeLinesBox">Edge Lines Box</a></li>
</ul></li>
<li><a href="#EffectsTab">Effects Tab</a>
<ul>
<li><a href="#EffectsLightingBox">Lighting Box</a></li>
<li><a href="#EffectsStereoBox">Stereo Box</a></li>
<li><a href="#EffectsCutawayBox">Wireframe Cutaway Box</a></li>
<li><a href="#EffectsTransparencyBox">Transparency Box</a></li>
<li><a href="#EffectsMiscBox">Misc Box</a></li>
</ul></li>
<li><a href="#PrimitivesTab">Primitives Tab</a>
<ul>
<li><a href="#PrimitivesSubstitutionBox">Primitive Substitution Box</a></li>
<li><a href="#PrimitivesMiscBox">Misc Box</a></li>
</ul></li>
<li><a href="#UpdatesTab">Updates Tab</a>
<ul>
<li><a href="#InternetProxyBox">Internet Proxy Box</a></li>
<li><a href="#MissingPartsBox">Missing Parts Box</a></li>
</ul></li>
<li><a href="#PreferenceSetsTab">Preference Sets Tab</a></li>
<li><a href="#ScreenSaverTab">Screen Saver Tab</a></li>
</ul></li>
<li><a href="#CommandLine">Command Line</a>
<ul>
<li><a href="#CommandLineFilename">Specifying a Filename</a></li>
<li><a href="#SnapshotFilename">Specifying a Snapshot Filename</a></li>
<li><a href="#SaveSnapshots">Requesting One or More Snapshots</a></li>
<li><a href="#ExportFilename">Specifying an Export Filename</a></li>
<li><a href="#ExportFiles">Requesting One or More Exports</a></li>
<li><a href="#Verbose">Verbose Output</a></li>
<li><a href="#IniFile">Specifying an INI file</a></li>
<li><a href="#LDConfig">Specifying an Alternate to LDConfig.ldr</a></li>
<li><a href="#L3PCompatibility">L3P-compatible Options</a></li>
<li><a href="#CommandLinePrefs">Specifying Preferences</a></li>
<li><a href="#PrefList">List of All Preferences</a></li>
</ul></li>
<li><a href="#MetaCommands">LDView-specific LDraw Meta Commands</a></li>
<li><a href="#Notes">Notes</a></li>
<li><a href="#ScreenSaver">Using LDView as a Screen Saver</a></li>
<li><a href="#Website">Website</a></li>
</ul>
<p><br/>
<a name="Intro"></a></p>
<div class="SectionHeader">Introduction</div>
<p>
<i>Please note</i>: this help file mostly documents the Windows version of
LDView, with a few notes about the Qt (Linux) and Mac versions, and some
specific notes on different conventions in the Mac version. For the most part,
the Qt and Mac versions have the same functionality as the Windows version, and
look and act the same (aside from having a mostly native UI look). However,
certain features (such as FSAA support) are missing from the Qt and Mac
versions, and other features (such as full screen support) are present with less
functionality. If you are using a non-Windows version of LDView, please don't
expect 100% of the features documented here to be present (although a very high
percentage are present). Anywhere this document refers to the Qt version of
LDView, it is referring to the version made using the Qt user interface library.
The Qt-based version of LDView is currently only available in binary form as
various Linux binaries. This version should work fine if compiled in other
Unix-like operating systems, though (as long Qt is supported on them).
</p>
<p>
LDView displays LDraw models, and consequently requires that LDraw be
installed. LDraw can be downloaded from
<a href="http://www.ldraw.org/">ldraw.org</a>, along with the up-to-date parts
library. If you install LDraw in any directory other than one of places LDView
looks by default, you will be asked the first time LDView loads if you already
have the LDraw library installed. If you say that you do, you will be asked to
select the directory in which LDraw is installed. Until you select the LDraw
directory, you will be unable to load a model. If you respond that you don't
already have LDraw installed, you will be asked if you want LDView to download
it for you.
</p>
<p>
When you run LDView, it will open its main window and immediately present you
with an open file dialog (assuming you didn't specify a file as part of the
launch process). Select the LDraw .ldr, .mpd, or .dat file you want to view.
It will then display the file in the window. Note that you can resize this
window. Also note that if you open a large model, it could take a substantial
amount of time to load. During this time, the status bar will indicate the
progress of the load. Hitting Escape, or choosing <a href="#CancelLoad">Cancel
Load</a> from the File menu, will cancel the load.
</p>
<p>
<a name="MacNotes"></a><br/></p>
<div class="SectionHeader">LDView on macOS</div>
<!-- Note: the # below isn't really right, but it works in both Safari and
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<p>
LDView on macOS uses the standard Mac convention of using the Command key
instead of the Control key for common activities. Anywhere in this document
that you see the Control key mentioned, remember that the Command key should be
used instead.
</p>
<p>
The menu layout on macOS is also somewhat different. The Preferences, About
LDView, and Exit menu items have been moved to their standard location in the
application (LDView) menu (with Exit being renamed to the standard of Quit
LDView). The recent files list has been placed in a standard Open Recent
sub-menu of the File menu.
</p>
<p>
If your mouse only has one button, holding down Control while clicking is
equivalent to using the right mouse button (as is standard). Additionally, if
you have a touch pad that supports two-finger dragging to scroll, this is
equivalent to using the mouse wheel (also as is standard). Pinch zooming also
works on such touch pads, as does two finger twisting to rotate the camera, when
you are in a mode that supports that. Finally, three-finger dragging is treated
the same as a middle button drag with a mouse.
</p>
<p>
<a name="LDrawLibrary"></a>
</p>
<div class="SectionHeader">LDraw Parts Library</div>
<p>
LDView displays LDraw models, and LDraw models (almost always) make use of parts
in the LDraw parts library. In order to display those models, LDView needs for
the LDraw parts library to be present on your computer, and needs to know where
on your computer the parts library is located. (If you only want to use LDView
to view models that have been created in the LDraw file format that do not make
use of the LDraw parts library, please see the documentation for the
<a href="#VerifyLDrawSetting">VerifyLDrawDir setting</a>.)
</p>
<p>
The first time you run LDView, it probably won't be able to find the LDraw parts
library, even if the library is already present on your computer. If this
happens, LDView will ask you if the library has already been installed. If you
already have the LDraw parts library on your computer, answer Yes, and then show
LDView where to find the library.
</p>
<p>
If you don't already have the LDraw parts library on your computer, answer No,
and you will be asked if you would like LDView to download the library for you.
As long as you aren't using a proxy server for HTTP connections, you can answer
Yes, and you will be asked where you want the library to be put. After this,
LDView will automatically download the latest version of the LDraw parts library
from LDraw.org. Once the library has been downloaded and installed, you can
then view models. Please note that the LDraw parts library is somewhat large
(over 6MB at the time this was written), so it could take a while to download if
you don't have a fast Internet connection.
</p>
<p>
If you use a proxy server for HTTP connections, tell LDView not to download the
LDraw parts library right now, and then go to the <a href="#UpdatesTab">Updates
tab</a> in LDView's preferences and configure your proxy server settings.
</p>
<p>
By default, if LDView encounters a request for a part that it cannot find, it
will attempt to download the part from the LDraw.org parts tracker. The parts
tracker contains all the unofficial parts that have been submitted for
inclusion in the official LDraw parts library that have either not yet been
approved for inclusion, or have been approved, but not yet been included in an
official release of
the library. Because unofficial parts can change in ways that aren't compatible
with old models (for example, being rotated), LDView generates a warning any
time it uses an unofficial file that it has downloaded. Note that if the part
subsequently gets added to the official library, the official version will
automatically be used instead (once you update your parts library), and the
warning will go away.
</p>
<p>
<a name="MouseControl"></a>
</p>
<div class="SectionHeader">Mouse and Keyboard Control</div>
<p>
LDView has three different modes of user interaction:
<a href="#ExamineMode">Examine Mode</a>, <a href="#FlyMode">Fly-through
Mode</a>, and <a href="#WalkMode">Walk Mode</a>. By default LDView is in
Examine Mode. You can switch modes by selecting the mode you want from the
<a href="#ViewMenu">View Menu</a>.
</p>
<p>
<span class="SubHeader"><a name="ExamineMode">Examine Mode</a></span><br/>
Click the left mouse button and drag around to rotate the model. If you let
go of the button while the mouse is in motion, the model will continue to
rotate on its own.
</p>
<p>
If you hold down the control key prior to clicking and dragging with the left
mouse button, or if you click the middle mouse button and drag, you will pan the
model instead of rotating it. The model will be pulled in the direction you
move the mouse. If you accidentally lose the model completely, and can't find
it, you can use the <a href="#ResetView">Reset View</a> option on the View menu
to reset the view.
</p>
<p>
If you <a name="MouseLightDirection">hold down the shift key</a> prior to
clicking and dragging with the left mouse button, you will change the light
direction. An arrow will be drawn to indicate the current light direction, and
moving the mouse will rotate the direction that the arrow points, as well as
updating the light direction. If you have problems getting it back to its
default setting, you can choose one of the <a href="#LightDirection">preset
light directions</a> in the Effects tab of the preferences.
</p>
<p>
Click the right mouse button and move it up or down to zoom in or out. The
speed at which it zooms in or out is based on how far you move the mouse from
where you initially clicked. If you have a mouse with a scroll-wheel, you can
also use the scroll-wheel to zoom in and out.
</p>
<p>
If you hold down the control key while zooming (either with the right mouse
button or the scroll wheel), you will adjust the cutaway mode instead of
zooming in the camera. Cutaway mode cuts away everything on the model that
is closer than a certain distance. This distance is defined by a clipping
plane. This allows you to look inside models without having to resort to
wireframe mode. Zooming in with the control key pressed moves the clipping
plane away from the camera, causing more and more of the model to be cut away.
Zooming out moves the clipping plane toward the camera, causing less and less
to be cut away. Please note that you will likely have to zoom in a ways before
the clipping plane reaches the model, so there will probably be no imediate
result. If you want, you can have LDView draw the cutaway portion of the model
in wireframe, using the <a href="#WireframeCutaway">Wireframe cutaway</a>
option. Note that this will slow things down considerably, since the entire
model has to be rendered twice.
</p>
<p>
<span class="SubHeader"><a name="FlyMode">Fly-through Mode</a></span><br/>
Click the left mouse button and move it around to turn the camera left, right,
up, and down. The further you move the mouse from the point you clicked, the
faster the camera will turn. You can also use the arrow keys to do the same
thing.
</p>
<p>
The camera can be moved using the keyboard. At any time, you can hold down
shift to double the speed at which you move. The movement keys are as follows:
</p>
<p>
<div class="KeyTable">
<div class="Column Right">
<div class="Header">Movement Direction</div>
<div>Forward:</div>
<div>Backward:</div>
<div>Left:</div>
<div>Right:</div>
<div>Up:</div>
<div>Down:</div>
</div>
<div class="Column">
<div class="Header">Key</div>
<div>W</div>
<div>S</div>
<div>A</div>
<div>D</div>
<div>R</div>
<div>F</div>
</div>
</div>
</p>
<p>
In addition to the above movement keys, the following keys effect the camera
rotation:
</p>
<p>
<div class="KeyTable">
<div class="Column Right">
<div class="Header">Rotation</div>
<div>Rotate Clockwise:</div>
<div>Rotate Counter-Clockwise:</div>
</div>
<div class="Column">
<div class="Header">Key</div>
<div>E</div>
<div>Q</div>
</div>
</div>
</p>
<p>
<span class="SubHeader"><a name="WalkMode">Walk Mode</a></span><br/>
Click the left mouse button and move it around to turn the camera left, right,
up, and down. The further you move the mouse from the point you clicked, the
faster the camera will turn. You can also use the arrow keys to do the same
thing.
</p>
<p>
The camera can be moved using the keyboard. Unlike in Fly-Through Mode, where
the camera moves exactly in the direction it is pointed, in Walk Mode it
maintains the same altitude while otherwise moving in the direction it is
pointed. It also keeps the model right side up. The movement keys are as
follows:
</p>
<p>
<div class="KeyTable">
<div class="Column Right">
<div class="Header">Movement Direction</div>
<div>Forward:</div>
<div>Backward:</div>
<div>Left:</div>
<div>Right:</div>
<div>Up:</div>
<div>Down:</div>
</div>
<div class="Column">
<div class="Header">Key</div>
<div>W</div>
<div>S</div>
<div>A</div>
<div>D</div>
<div>R</div>
<div>F</div>
</div>
</div>
</p>
<p>
<a name="StepSupport"></a>
</p>
<div class="SectionHeader">Step Support</div>
<p>
LDraw files may contain steps. If so, you can view the steps in order to see
how to build the model. However, by default, LDView displays the last step,
which shows the complete model. Use one of the <i>Step</i> menu items or one of
the step toolbar controls to look at the steps.
</p>
<p>
Some programs support some advanced options for steps such as temporary buffers
(so that a sub-section of the model can be initally shown in one location and
then moved to another) and custom rotation angles. LDView doesn't support this
advanced functionality. It recognizes the <tt>ROTSTEP</tt> LDraw command, which
is used for steps with a custom rotation angle, but treats it just like a
standard step command. It ignores all other advanced step commands.
</p>
<p>
LDView only shows the steps in the top-level model that it is displaying. If
you want to see the steps in a sub-model of that model, you must load the
sub-model directly. If you want to see the steps in the sub-models of an MPD
file, you must first select the sub-model using the <a href="#MPDDialog">MPD
Model Selection Dialog</a> (available from the <a href="#ToolsMenu">Tools
Menu</a> . Once you have selected the sub-model as the main model, its steps
can be navigated just as if it were in its own file which you loaded directly.
</p>
<p>
<a name="Menus"></a>
</p>
<div class="SectionHeader">Menus</div>
<p>
The shortcut key for each menu item is shown in the menu when running LDView.
Note that these keys will continue to function even while in fullscreen mode
where there is no visible menu.
</p>
<table cellspacing="6">
<tr>
<td colspan="3"><span class="SubHeader2"><a name="FileMenu">File
Menu</a></span></td>
</tr>
<tr valign="top">
<td class="MenuTitle">Open:</td>
<td colspan="2">Open a new model file.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Save Snapshot:</td>
<td colspan="2">Save a PNG or BMP snapshot of the current model with the
current view. See <a href="#SaveSnapshotOptions">here</a> for
information about the extra settings in the save dialog.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Export:</td>
<td colspan="2">Export the loaded LDraw model to various different file
formats. See <a href="#Export">here</a> for details.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Reload:</td>
<td colspan="2">Reload the current model file. (Use this if you are
viewing a model you are in the process of making changes to in some
other program, but don't want to use the polling feature below.)</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Cancel Load:</td>
<td colspan="2">During a load, you can select this menu item to cancel
the load. It is likely that you will generally just use the keyboard
accelerator, though, and hit the Escape key.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Polling:</td>
<td colspan="2">Submenu containing polling options which allow you to have
the model automatically reload when its file changes.</td>
</tr>
<tr valign="top">
<td></td>
<td class="MenuTitle">Disabled:</td>
<td>Disable the polling feature completely. You can still used the
Reload option to reload the current model.</td>
</tr>
<tr valign="top">
<td></td>
<td class="MenuTitle">Prompt:</td>
<td>Enables polling. When a change is detected, a dialog is displayed
asking you if you want to reload the model file. This option only
polls for changes when LDView is the foreground application. The
dialog will thus normally be presented to you when you switch to the
running LDView application after making changes to your model in some
other application.</td>
</tr>
<tr valign="top">
<td></td>
<td class="MenuTitle">Auto-update when active:</td>
<td>Enables polling. When a change is detected, the current model file
is reloaded automatically. This option only polls for changes when
LDView is the foreground application. The model will thus normally be
automatically reloaded when you switch to the running LDView application
after making changes to your model in some other application.</td>
</tr>
<tr valign="top">
<td></td>
<td class="MenuTitle">Auto-update immediately:</td>
<td>Enables polling. When a change is detected, the current model file
is reloaded automatically. This option polls for changes whether or not
LDView is the foreground application. The model will thus be
automatically reloaded immediately after you save changes to your model
in some other application. Note that with large models, this reload
can have a significant impact on your computer's CPU availability.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Check for Library Updates:</td>
<td colspan="2">Checks to see if there are any library updates on
LDraw.org that aren't yet installed, and downloads and installs them if
any are found.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Page Setup:</td>
<td colspan="2">Setup the page for printing. This shows the standard
Windows Page Setup Dialog with the addition of a check box which
allows you to choose whether or not the background color should be
printed (it isn't by default).</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Print:</td>
<td colspan="2">Print the current model with the current view.</td>
</tr>
<tr valign="top">
<td class="MenuTitle"><Recent Files>:</td>
<td colspan="2">Shows the filenames of the 10 most recently loaded files.
Select any one to load that file.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Exit:</td>
<td colspan="2">Exit LDView.</td>
</tr>
<tr>
<td colspan="3"><hr size="1" width="90%" noshade="noshade"/></td>
</tr>
<tr>
<td colspan="3"><span class="SubHeader2"><a name="EditMenu">Edit
Menu</a></span></td>
</tr>
<tr valign="top">
<td class="MenuTitle">Preferences:</td>
<td colspan="2">Shows the <a href="#Prefs">Preferences Dialog</a>.</td>
</tr>
<tr>
<td colspan="3"><hr size="1" width="90%" noshade="noshade"/></td>
</tr>
<tr>
<td colspan="3"><span class="SubHeader2"><a name="ViewMenu">View
Menu</a></span></td>
</tr>
<tr valign="top">
<td class="MenuTitle">Use Visual Style (requires restart):</td>
<td colspan="2">This menu is not visible when running LDView in operating
systems other than Windows, or in Windows versions prior to Windows XP.
When present, it enables or disables the use of Windows XP Visual
Styles. You must restart LDView for changes in this option to become
visible.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Switch to Fullscreen:</td>
<td colspan="2">Switches to the currently selected
<a href="#Fullscreen">fullscreen</a> video mode.
If you are already in fullscreen mode, Ctrl+Enter switches back to
windowed mode.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Toolbar:</td>
<td colspan="2">Toggles the <a href="#Toolbar">toolbar</a> on and off.
Note that the toolbar is never visible in full-screen mode.</td>
</tr>
<tr valign="top">
<td class="MenuTitle"><a name="StatusBar">Status Bar:</a></td>
<td colspan="2">Toggles the permanent display of the status bar on and
off. Note that the status bar will always display when there is load
progress to be indicated. Also, except while displaying load progress,
it is never visible in full-screen mode.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Always on Top:</td>
<td colspan="2">Toggles Always on Top mode. When this is enabled, the
LDView window is kept above all other windows (with the exception of
some other topmost windows). When it is disabled (the default), LDView
acts just like a normal Windows program.</td>
</tr>
<tr valign="top">
<td class="MenuTitle"><a name="ResetView">Reset View</a>:</td>
<td colspan="2">Resets the model to the default view that is shown
immediately after the initial load. Any viewing angle can be saved as
the default viewing angle using <a href="#SaveDefaultView">this</a>
menu item.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Zoom to Fit:</td>
<td colspan="2">Zooms the model in to fill the current window.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Right Side Up:</td>
<td colspan="2">Rotates the model so that it is right side up.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Camera Location:</td>
<td colspan="2">Shows the <a href="#CameraLocDialog">Camera Location
Dialog</a>.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Rotation Center:</td>
<td colspan="2">Shows the <a href="#RotationCenterDialog">Rotation
Center Dialog</a>.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Viewing Angles:</td>
<td colspan="2">Submenu containing preset viewing angles.</td>
</tr>
<tr valign="top">
<td></td>
<td class="MenuTitle">Front:</td>
<td>Sets the view to show the front of the model.</td>
</tr>
<tr valign="top">
<td></td>
<td class="MenuTitle">Back:</td>
<td>Sets the view to show the back of the model.</td>
</tr>
<tr valign="top">
<td></td>
<td class="MenuTitle">Left:</td>
<td>Sets the view to show the left of the model.</td>
</tr>
<tr valign="top">
<td></td>
<td class="MenuTitle">Right:</td>
<td>Sets the view to show the right of the model.</td>
</tr>
<tr valign="top">
<td></td>
<td class="MenuTitle">Top:</td>
<td>Sets the view to show the top of the model.</td>
</tr>
<tr valign="top">
<td></td>
<td class="MenuTitle">Bottom:</td>
<td>Sets the view to show the bottom of the model.</td>
</tr>
<tr valign="top">
<td></td>
<td class="MenuTitle">Specify latitude/longitude:</td>
<td colspan="2">Shows the <a href="#LatLonDialog">Latitude/Longitude
Dialog</a>.</td>
</tr>
<tr valign="top">
<td></td>
<td class="MenuTitle">Two-thirds:</td>
<td>Sets the view to a two-thirds view of the model. This is the
default view until you change it to something else.</td>
</tr>
<tr valign="top">
<td></td>
<td class="MenuTitle"><a name="SaveDefaultView">Save Current as
Default:</a></td>
<td>Saves the current viewing angle as the default viewing angle. Note
that this only stores the viewing angle, not the viewing distance. The
viewing distance is still reset to the default distance when you change
to the default view.</td>
</tr>
<tr valign="top">
<td class="MenuTitle"><a name="StandardSizes">Standard Sizes</a>:</td>
<td colspan="2">Submenu containing preset window sizes. Select any item
in the list to change the main 3D view in LDView to that size. Each
size also contains two numbers in parentheses after the dimensions.
These represent the aspect ratio. So <b>(4:3)</b> represents a 4/3rds
aspect ratio (just like a standard definition TV set), and <b>(16:9)</b>
represents a 16 to 9 aspect ratio (just like a high definition TV
set). These are particularly useful when you intend to either
<a href="#PovExport">export to POV</a> or use the
<a href="#PovCamera"><i>Show POV-Ray Camera Info</i></a> command.
<br/><br/>Note that only sizes that will fit on the screen are shown in the
list. Also, sizes that are close to the maximum size may only show up
on the list if the toolbar and status bar are disabled, since these
change the overall height of the LDView window. Additionally, if you
have multiple monitors, you might get a different list on each monitor,
if the monitors have different resolutions, or one monitor has the task
bar visible and the other doesn't.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Examine Mode:</td>
<td colspan="2">Puts LDView in <a href="#ExamineMode">Examine Mode</a>.
This is the default mode.</td>
</tr>
<tr valign="top">
<td class="MenuTitle"><a name="LatLonMode">Latitude/Longitude
Rotation:</a></td>
<td colspan="2">Toggle to enable or disable latitude/longitude rotation
mode. In latitude/longitude rotation mode, moving the mouse side to
side changes the view's longitude, and moving the mouse up and down
changes the view's latitude. Also, the current latitude and longitude
are shown in the bottom right of the status bar when in
latitude/longitude rotation mode.
<br/><br/>This is only available in Examine Mode.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Fly-through Mode:</td>
<td colspan="2">Puts LDView in <a href="#FlyMode">Fly-through
Mode</a>.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Keep Right Side Up:</td>
<td colspan="2">Keeps the model right side up while in Fly-Through
Mode.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Walk Mode:</td>
<td colspan="2">Puts LDView in <a href="#WalkMode">Walk Mode</a>.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">XX-Bit Modes:</td>
<td colspan="2">Submenu containing all of the available fullscreen video
modes with a bit-depth of XX (where XX will usually be 15, 16, 24, or
32). There is a separate submenu for each bit-depth of 15 or greater
bits supported by your video card. There will be a dot beside the
bit-depth menu which contains the currently selected fullscreen video
mode. In that submenu, there will be a dot next to the currently
selected video mode.</td>
</tr>
<tr>
<td colspan="3"><hr size="1" width="90%" noshade="noshade"/></td>
</tr>
<tr>
<td colspan="3"><span class="SubHeader2"><a name="StepMenu">Step
Menu</a></span></td>
</tr>
<tr valign="top">
<td class="MenuTitle">First:</td>
<td colspan="2">Displays the loaded model's first step.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Previous:</td>
<td colspan="2">Displays the loaded model's previous step.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Next:</td>
<td colspan="2">Displays the loaded model's next step.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Last:</td>
<td colspan="2">Displays the loaded model's last step.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Go to Step:</td>
<td colspan="2">Shows a dialog to go to a specific step.</td>
</tr>
<tr>
<td colspan="3"><hr size="1" width="90%" noshade="noshade"/></td>
</tr>
<tr>
<td colspan="3"><span class="SubHeader2"><a name="ToolsMenu">Tools
Menu</a></span></td>
</tr>
<tr valign="top">
<td class="MenuTitle">Errors & Warnings:</td>
<td colspan="2">Shows the <a href="#ErrorWindow">Errors & Warnings
Window</a>.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Parts List:</td>
<td colspan="2">Shows the <a href="#PartsListDialog">Parts List
Dialog</a>.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Model Tree:</td>
<td colspan="2">Shows the <a href="#ModelTreeDialog">Model Tree
Dialog</a>.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Model Bounding Box:</td>
<td colspan="2">Displays a dialog box showing the minimum and maximum
corners of an axis-aligned bounding box around the model, and draws
that bounding box. Close the dialog to turn off the bounding box
display. Note that you can still interact with the model while this
dialog is visible.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">MPD Model Selection:</td>
<td colspan="2">Shows the <a href="#MPDDialog">MPD Model
Selection Dialog</a>.</td>
</tr>
<tr valign="top">
<td class="MenuTitle"><a name="ShowViewInfo">Show View Info:</a></td>
<td colspan="2">This shows a dialog that contains the model's current
rotation matrix and zoom level (camera distance). Hitting OK copies
this information to the clipboard in a format suitable for use with
LDView on the command line. Note that the camera's position and viewing
angle aren't recorded at this time, so it's recommended that you
not try to use this in Fly-through Mode or after having panned.</td>
</tr>
<tr valign="top">
<td class="MenuTitle"><a name="PovCamera">Show POV-Ray Camera
Info:</a></td>
<td colspan="2">This shows a dialog that contains information about the
current camera position as is needed in POV-Ray. Hitting OK copies a
POV-Ray-compatible camera declaration into the clipboard. This can be
directly pasted into a POV-Ray file to replace the existing camera.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Use current aspect ratio for POV-Ray camera:</td>
<td colspan="2">Toggle that controls whether the 3D view's current aspect
ratio is used in the POV-Ray camera that is copied to the clipboard when
using the <a href="#PovCamera"><i>Show POV-Ray Camera Info</i></a>
command. If this is checked, the current aspect ratio will be used.
Otherwise, 4/3 is used. Since POV images tend to be done at specific
aspect ratios, this is most useful immediately after selecting a
<a href="#StandardSizes">standard size</a> with the desired aspect
ratio.</td>
</tr>
<tr>
<td colspan="3"><hr size="1" width="90%" noshade="noshade"/></td>
</tr>
<tr>
<td colspan="3"><span class="SubHeader2"><a name="HelpMenu">Help
Menu</a></span></td>
</tr>
<tr valign="top">
<td class="MenuTitle">OpenGL Driver Info:</td>
<td colspan="2">This shows a dialog containing information about your
OpenGL driver. I may request this information from you if you are
experiencing problems. The text in the box can be selected, and then
copied to the clipboard by hitting Ctrl+C.</td>
</tr>
<tr valign="top">
<td class="MenuTitle">Contents:</td>
<td colspan="2">Displays this file in your web browser. (Only works in
Windowed mode; hitting F1 from Fullscreen mode will not have any
effect.)</td>
</tr>
<tr valign="top">
<td class="MenuTitle">About LDView:</td>
<td colspan="2">Shows the About box, which contains version and
copyright information about LDView.</td>
</tr>
</table>
<p>
<br/>
<a name="Toolbar"></a>
</p>
<div class="SectionHeader">Toolbar</div>
<p>
The toolbar allows you to quickly access certain features and settings. A
number of the buttons on the toolbar are dual-purpose. Clicking the button
toggles a particular setting on and off, and clicking the arrow next to the
button shows a menu that allows you to set other settings related to the
main one. The items in the menu are only enabled if the main setting is
toggled on.
</p>
<p>
In Windows, if you right click on the toolbar, you will get a menu that allows
you to enable or disable the two sections of the toolbar (<i>Main</i> and
<i>Steps</i>), as well as customize the main section. In macOS, you can use
the standard toolbar customization UI. The default toolbar buttons are designed
to be useful by a wide audience, but consequently won't necessarily have the
toolbar buttons that individual users will find most useful. It is highly
recommended that you customize the toolbar to suit your usage of LDView.
</p>
<p>
<br/>
</p>
<p>
<a name="Fullscreen"></a>
</p>
<div class="SectionHeader">Fullscreen Mode</div>
<p>
You can switch to fullscreen mode via the View menu. To do so, select a color
depth and resolution combination, and then select the <span class="NoWrap">View->Switch</span> to
Fullscreen menu option, or hit Ctrl+Enter. To exit full screen mode, either
hit Ctrl+Enter again or hit Escape. Note that this feature does not work
properly on all video cards. If it doesn't work on your video card, you should
get an error dialog after the screen resolution is changed. After you dismiss
the error dialog, it should automatically switch back to windowed mode. While
in fullscreen mode you can spin the model around with the mouse, and zoom in
and out the same way you did in windowed mode.
</p>
<p>
As long as your video card supports 2D Windows functionality while in fullscreen
mode, the Open dialog and Preferences dialog can be accessed from fullscreen mode
via their keyboard shortcuts (Ctrl+O for Open File; Ctrl+Shift+P for
Preferences). If you are unsure, try Ctrl+O first, and if you don't see an
Open dialog, hit escape to dismiss the Open dialog that you can't see. F5 for
reload also works--whether or not your video card supports 2D Windows
funtionality from fullscreen mode--but unless you are displaying a file that
someone else on your network is modifying, it's not likely to be very useful.
</p>
<p>
<br/>
<a name="SaveSnapshotOptions"></a>
</p>
<div class="SectionHeader">Save Snapshot Options</div>
<p>
When you save a snapshot, the following LDView-specific options show up at the
bottom of the standard save dialog box.
</p>
<p>
<i><b><a name="SaveSeriesCheck">Save snapshot series</a></b></i> (Default:
<i>Off</i>):<br/>
Enabling this option causes a unique number to automatically be appended to the
filename. This allows you to save a number of shots of the same model without
having to enter a new filename each time.
</p>
<p>
<i><a name="SaveDigitsField">Number of Digits</a></i> (Default: <i>1</i>):<br/>