methods-tools-in-spatial-research/index.html at main · CenterForSpatialResearch/methods-tools-in-spatial-research · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>critical methods in spatial research</title>
    <link rel="stylesheet" href="./main.css">
    <link href="https://fonts.googleapis.com/css2?family=Open+Sans:wght@300&display=swap" rel="stylesheet">
    <script src="https://www.gstatic.com/charts/loader.js"></script>
    <script src="https://code.jquery.com/jquery-1.12.4.js"></script>
    <script async src="https://www.googletagmanager.com/gtag/js?id=G-J2SEN9LXNV"></script>
    <script src="https://d3js.org/d3.v6.min.js"></script>
</head>
<body>

    <div class="top-bar">

        <div class="title">
            <a onclick="location.reload();">
                Methods and Tutorials in Spatial Research
            </a>
        </div>

        <div class="button-container" id="about">
            <a href="about.html">About</a>
        </div>
     </div>

    <div class="column">
        <div class="column-left" >
        <div id="side-panel" >
                <p>
                    In connection with our research, the Center for Spatial Research and project collaborators have developed tutorials in critical mapping and data visualization. Tutorials are crafted to provide the technical expertise necessary for critically-minded spatial research across a broad range of disciplines. This growing library is designed to be a resource for students, faculty, and practitioners engaging in spatial research at Columbia University and beyond.
                </p>

                <input type="text" id="searchInput" class="search-input" placeholder="search by author, key terms, method ...">
                <button onclick="search()" id="searchButton">></button>

                <p style="margin-top: 35px; font-weight: bold;">
                    Workshop Panels:
                </p>
                <div class="panel-button-wrapper">
                    <div id="VisualCodeButton" class="panel-button"></div>
                    <span class="button-text">Visual Code</span>
                </div>

                <div class="panel-button-wrapper">
                    <div id="mappingConflictButton" class="panel-button"></div>
                    <div class="button-text">Mapping Conflict</div>
                </div>

                <div class="panel-button-wrapper">
                    <div id="counterNarrativesButton" class="panel-button"></div>
                    <span class="button-text">Counter Narratives</span>
                </div>

                <div class="panel-button-wrapper">
                    <div id="localDataButton" class="panel-button"></div>
                    <span class="button-text">Local Data</span>
                </div>

                <div class="panel-button-wrapper">
                    <div id="networksButton" class="panel-button"></div>
                    <span class="button-text">Network Models</span>
                </div>

                <div class="panel-button-wrapper">
                    <div id="forensicsButton" class="panel-button"></div>
                    <span class="button-text">Counter Forensics</span>
                </div>

                <hr style="width: 97%; margin: 20px auto;">

                <p style="font-weight: bold;">
                    Center for Spatial Research
                </p>
                <div class="panel-button-wrapper">
                    <div id="csrButton" class="panel-button"></div>
                    <span class="button-text">Projects</span>
                </div>

            </div>
        </div>

        <div class="column-main-viz">

                <div id="visualize-container">Visualize By:</div>
                <div class="button-container">
                    <button class="flex-project" id="show-projects">PROJECT NAMES</button>
                    <button class="flex-author" id="show-authors">AUTHOR NAMES</button>
                </div>

            <div id="networkviz"></div>

        </div>
    </div>

<script>

    let data;

    function loadData() {
        d3.json("tutorials.json").then(function(loadedData) {
            data = loadedData;
            visualizeData();
        });

    }


    loadData();


    function visualizeData() {
        // Set initial dimensions
        const width = window.innerWidth;
        const height = window.innerHeight;

        // Define margins with left margin based on a percentage of the viewport width
        const margin = {
            top: 0,
            right: 0,
            bottom: 0,
            left: 0
            // left: 0.2* width // 10% of the viewport width
        };

        // Adjust the inner width of the content (excluding margins)
        const adjustedWidth = width - margin.left - margin.right;
        const adjustedHeight = height - margin.top - margin.bottom;

        // Append the SVG object to the div with id 'networkviz'
        const svg = d3.select("#networkviz")
            .append("svg")
            .attr("width", '100%')            // Set width to 100% to allow resizing
            .attr("height", '100%')           // Set height to 100% for full window
            .append("g")

        //Extract all unique panel names and create links to the tutorials within each panel. These links represent relationships between different items within the same panel.
        var panels = Array.from(new Set(data.tutorials.map(tutorial => tutorial.panel)));

          // Creating the links
          var links = [];
          var tagLinks =[]
          var panelLinks =[] //this separation is pointless

        panels.forEach(panel => {
            var tutorialsInPanel = data.tutorials.filter(tutorial => tutorial.panel === panel);
            for (let i = 0; i < tutorialsInPanel.length; i++) {
                for (let j = i + 1; j < tutorialsInPanel.length; j++) {
                    if (tutorialsInPanel[i].project !== tutorialsInPanel[j].project) {
                        panelLinks.push({
                            source: tutorialsInPanel[i].project,
                            target: tutorialsInPanel[j].project,
                            panel: panel  // Add the panel name to the link object
                        });
                    }
                }
            }
        });

        // Extract tags for each project
        const projectTags = data.tutorials.map(tutorial => ({ project: tutorial.project, tags: tutorial.tags }));

        projectTags.forEach((source, i) => {
        projectTags.slice(i + 1).forEach(target => {
            // Check if there are common words in tags between source and target
            const commonTags = [];
            source.tags.forEach(sourceTag => {
                target.tags.forEach(targetTag => {
                    const sourceWords = sourceTag.split(" ");
                    const targetWords = targetTag.split(" ");
                    sourceWords.forEach(word => {
                        if (targetWords.includes(word)) {
                            commonTags.push(word);
                        }
                    });
                });
            });
            if (commonTags.length > 0) {
                // If there are common words, create a link between the projects
                tagLinks.push({ source: source.project, target: target.project, commonTags: commonTags });
                }
            });
        });

        const allLinks = links.concat(tagLinks, panelLinks);

        // Define a function to get the color class based on the panel name
        function getNodeColor(panel) {
            switch (panel) {
                case "Visual Code":
                    return "panel-VisualCode";
                case "Mapping Conflict":
                    return "panel-MappingConflict";
                case "Counter Narrative":
                    return "panel-CounterNarrative";
                case "Local Data":
                    return "panel-LocalData";
                case "Network Models":
                    return "panel-NetworkModels";
                case "Counter Forensics":
                    return "panel-CounterForensics";
                default:
                    return "panel-Default";
            }
        }

        // Returns the linked CSS class name for style definition based on the panel name.
        function getLinkClassName(panel) {
            return `link ${panel.replace(/\s+/g, '')}`; // Remove spaces and lowercase
        }

        // Create a <line> element for each linked data and assign CSS class names based on the panel name.
        const link = svg
            .selectAll("line")
            .data(allLinks)
            .enter()
            .append("line")
            .attr("class", function(d) {
                if (d.panel) {
                    return getLinkClassName(d.panel); // Assign the class dynamically based on panel name
                } else {
                    return "link"; // Default class for links without a panel
                }
            });


        function getNodePanel(node) {
             const tutorial = data.tutorials.find(tutorial => tutorial.project === node.project);
            return tutorial ? tutorial.panel : ""; // Return panel if tutorial exists, otherwise return an empty string
        }

        // Creates a <circle> element for each tutorial data, sets the radius, and assigns CSS classes and colors based on the panel name. Each node also holds the original panel name.
        const node = svg
            .selectAll("circle")
            .data(data.tutorials)
            .join("circle")
                .attr("r", 10)
                .attr("class", d => `node panel-${d.panel.replace(/\s+/g, '')} ${getNodeColor(d.panel)}`)
                .each(function(d) {
                 d3.select(this).attr("original-panel", d.panel); // Store the original panel name
                })
                .call(
                    d3.drag()
                    .on("start", dragstarted)
                    .on("drag",dragged)
                    .on("end", dragended)
                );

          // Reheat the simulation when drag starts, and fix the subject position.
            function dragstarted(event) {
                if (!event.active) simulation.alphaTarget(0.3).restart();
                event.subject.fx = event.subject.x;
                event.subject.fy = event.subject.y;
            }

            // Update the subject (dragged node) position during drag.
            function dragged(event) {
                event.subject.fx = event.x;
                event.subject.fy = event.y;
            }

            function dragended(event) {
                if (!event.active) simulation.alphaTarget(0);
                event.subject.fx = null;
                event.subject.fy = null;
            }

        const wrapText = (text, maxWidth) => {

            if (typeof text !== "string") {
                text = String(text || '');  // Convert non-strings to empty strings or ensure it's a string
            }

            const words = text.split(/\s+/);  // Split text into words
            let lines = [];
            let currentLine = [];

            words.forEach(word => {
                currentLine.push(word);
                const currentLineStr = currentLine.join(" ");
                const testText = svg.append("text").text(currentLineStr).attr("class", "test-wrap"); // Temporary element for testing width

                if (testText.node().getComputedTextLength() > maxWidth) {
                    currentLine.pop();  // Remove the last word if width exceeds maxWidth
                    lines.push(currentLine.join(" "));  // Push the valid line to lines array
                    currentLine = [word];  // Start a new line with the word that overflowed
                }

                testText.remove();  // Clean up the temporary text element
            });

            // Add the last line
            if (currentLine.length > 0) {
                lines.push(currentLine.join(" "));
            }

            return lines;
        };

        var xTextOffset = 0;
        let showAuthor = true;

        d3.select("#show-authors").on("click", function() {
            showAuthor = true;
            updateTextContent();  // Call the function to update text content
            setFocusClass(this);
        });

        // Display projects
        d3.select("#show-projects").on("click", function() {
            showAuthor = false;
            updateTextContent();  // Call the function to update text content
            setFocusClass(this);
        });

        function yTextOffset(){
        if(svgWidth > 800){
            return 30;
        }
        else {
            return 15
        };
    }

// Function to update text content based on showAuthor
function updateTextContent() {
    svg.selectAll("text").remove();  // Clear previous text elements

    svg.selectAll("text").data(data.tutorials)
        .enter()
        .append("text")
        .attr("class", "node-text")
        .attr("x", d => d.cx + xTextOffset)
        .attr("y", d => d.cy + yTextOffset())
        .each(function(d) {
            d3.select(this).selectAll("tspan").remove();  // Clear previous tspans
            const textContent = showAuthor ? d.authors : d.project;
            const yOffset = svgWidth > 800 ? 20 : 10;
            const lines = wrapText(textContent, 0.05 * window.innerWidth + 63.25);
            // const lines = wrapText(textContent,  0.098 * window.innerWidth + 50);
            let dy = 0;

            lines.forEach(line => {
                d3.select(this)
                    .append("tspan")
                    .attr("x", d.x + xTextOffset)
                    .attr("y", d.y + dy + yTextOffset())
                    .text(line);

                dy += yOffset;
            });

        });
    }

    // Function to set focus class on buttons
    function setFocusClass(button) {
        d3.selectAll(".button-container button").classed("custom-focus", false); // Remove custom class from all buttons
        d3.select(button).classed("custom-focus", true); // Add custom class to the clicked button
    }

        var svgWidth = parseFloat(d3.select("#networkviz").style("width"));
        var svgHeight = parseFloat(d3.select("#networkviz").style("height"));

        const collideWidth = svgWidth > 800 ? (Math.min(svgWidth, svgHeight)/10) : (Math.min(svgWidth, svgHeight)/8);


    const simulation = d3.forceSimulation(data.tutorials)
            .force("link", d3.forceLink(allLinks) // This force provides links between nodes
                .id(d => d.project) // This provide  the id of a node
                .links(allLinks)  // and this the list of links
                )

            .force("charge", d3.forceManyBody() // This adds repulsion between nodes.
                .strength(-1 * Math.min(svgWidth, svgHeight) / 300)

            )
            .force("center", d3.forceCenter(svgWidth/2, svgHeight/2)) // bring to center
            // .force("collide", d3.forceCollide(Math.min(svgWidth, svgHeight)/10))
            .force("collide", d3.forceCollide(collideWidth))
            .on("tick", ticked);

        //TO DO this is temp fix for intial text wrap
        function delay(ms) {
                return new Promise(resolve => setTimeout(resolve, ms));
            }

            async function clickVisual() {
                // console.log("Waiting 2 seconds...");
                await delay(1000);
                document.getElementById('show-projects').click();
                // console.log("Function executed after 2 seconds");
                }

            clickVisual();

        function ticked() {

            link
                .attr("x1", function(d) { return d.source.x; })
                .attr("y1", function(d) { return d.source.y; })
                .attr("x2", function(d) { return d.target.x; })
                .attr("y2", function(d) { return d.target.y; });

            node
                .attr("cx", function (d) { return d.x+1; })
                .attr("cy", function(d) { return d.y-1; });

            const text = svg.selectAll("text").remove()

            svg.selectAll("text")
                .data(data.tutorials)
                .enter()
                .append("text")
                .attr("class", "node-text")
                .attr("x", d => d.cx + xTextOffset)  // Modify the location of the <text>
                .attr("y", d => d.cy + yTextOffset())
                .each(function(d){
                    const yOffset = svgWidth > 800 ? 20 : 10;
                    const textContent = showAuthor ? d.authors : d.project;
                    const lines = wrapText(textContent, 0.05 * window.innerWidth + 63.25);
                    let dy = 0;  // Initial y offset

                    lines.forEach(line => {
                        d3.select(this)
                            .append("tspan")
                            .attr("x",d.x)
                            .attr("y",d.y + dy + yTextOffset())
                            .text(line);

                        dy += yOffset;  // Increase dy for the next line
                    });

                    d3.select(this)
                        .attr("original-panel", d.panel);  // Store the original panel name

                    });
        }

        //onclick link to individual tutorial pages
        svg.selectAll(".node")
            .on("click", handleClick);

        function handleClick(event, d) {
            const projectName = d.project.replace(/[\s:.,-]+/g, '');
            const baseUrl = `${window.location.origin}${window.location.pathname.replace('index.html', '')}`;
            const projectUrl = `${baseUrl}tutorials/${projectName}.html`;
            window.open(projectUrl, '_blank'); // open in new window
        }

    // Handle window resize to adjust the SVG dimensions dynamically
    window.addEventListener('resize', resize); // TODO: is this working?

    function resize() {
        const newWidth = window.innerWidth;
        const newHeight = window.innerHeight;

        // Update the viewBox to match the new window size
        svg.attr("viewBox", `0 0 ${newWidth} ${newHeight}`);
        // Adjust other elements if necessary based on the new size
        // Example: re-scale text, paths, etc. as needed
    }
    }

    function search() {
        var searchText = document.getElementById("searchInput").value.toLowerCase();

        // Filter the data based on search text
        var filteredData = data.tutorials.filter(function(item) {
            return (
                item.project.toLowerCase().includes(searchText) ||
                item.authors.some(author => author.toLowerCase().includes(searchText)) ||
                item.tags.some(tag => tag.toLowerCase().includes(searchText))
            );
        });

        // Update visualization with filtered data
        highlightNodes(filteredData);
    }

    let searchLinks = [];

    function highlightNodes(filteredData) {
        // Reset styles for all nodes
        d3.selectAll(".node")
            .attr("r", 10)
            .style("stroke-width", "2px");

        // Highlight filtered nodes
        d3.selectAll(".node")
            .filter(function(d) {
                return filteredData.some(function(item) {
                    return item.project === d.project;
                });
            })
            .attr("r", 12)
            .style("stroke-width", "5px");


        d3.selectAll(".link")
            .style("stroke-width", function(d) {
                const sourceConnected = filteredData.some(function(item) {
                    return item.project === d.source.project;
                });
                const targetConnected = filteredData.some(function(item) {
                    return item.project === d.target.project;
                });
                if (sourceConnected && targetConnected) {
                    searchLinks.push(d); // Store the filtered link
                    return "3px"; // Set stroke width to 3px for links connected to filtered nodes on both ends
                } else {
                    return "1px"; // Set stroke width to 1px for other links
                }
            })
            .style("opacity", function(d) {
                const sourceConnected = filteredData.some(function(item) {
                    return item.project === d.source.project;
                });
                const targetConnected = filteredData.some(function(item) {
                    return item.project === d.target.project;
                });
                return (sourceConnected && targetConnected) ? 1.0 : 0.6; // Set opacity to 1 for links connected to filtered nodes on both ends
            });
    }

// Function to toggle highlight based on panel

    const originalNodeStrokeColors = {};

    function toggleHighlightByTag(tag, highlight) {
        const normalizedTag = tag.toLowerCase(); // Normalize the tag to lower case
        const taggedNodes = document.querySelectorAll('.node');
        const taggedLinks = document.querySelectorAll('.link');

        const highlightedNodes = new Set(); // Set to store currently highlighted nodes

        taggedNodes.forEach(node => {
            const nodeData = d3.select(node).data()[0]; // Get the data bound to the node
            const nodeTags = nodeData.tags.map(t => t.toLowerCase()); // Normalize node tags to lower case
            if (nodeTags.includes(normalizedTag)) {
                if (highlight && normalizedTag === 'csr') {
                    if (!originalNodeStrokeColors[nodeData.project]) {
                        originalNodeStrokeColors[nodeData.project] = node.style.stroke; // Store original stroke color
                    }
                    node.style.strokeWidth = '5px'; // Set stroke width to 5px
                    node.setAttribute('r', 12); // Increase circle radius size
                    node.style.stroke = '#29AAE1'; // Set stroke color to #29AAE1 for csr tag
                } else if (highlight) {
                    node.style.strokeWidth = '5px'; // Set stroke width to 5px
                    node.setAttribute('r', 12); // Increase circle radius size
                } else {
                    node.style.strokeWidth = '2px'; // Restore default stroke width
                    node.setAttribute('r', 10); // Restore default circle radius size
                    if (normalizedTag === 'csr') {
                        node.style.stroke = originalNodeStrokeColors[nodeData.project] || ''; // Restore original stroke color for csr tag
                    }
                }
                highlightedNodes.add(nodeData.project); // Add node project to highlighted set
            }
        });

    taggedLinks.forEach(link => {
        const linkData = d3.select(link).data()[0]; // Get the data bound to the link
        const sourceNode = linkData.source.project;
        const targetNode = linkData.target.project;

        if (highlightedNodes.has(sourceNode) && highlightedNodes.has(targetNode)) {
            if (highlight) {
                link.style.strokeWidth = '3px';
            } else {
                link.style.strokeWidth = '1px'; // Restore default stroke width
            }
        } else {
            link.style.strokeWidth = '1px'; // Restore default stroke width for unhighlighted links
        }
    });
}

    function toggleHighlight(panel, highlight) {
        const panelNodes = document.querySelectorAll(`.node.panel-${panel}`);
        const panelLinks = document.querySelectorAll(`.link.${panel}`);

        panelNodes.forEach(node => {
            if (highlight) {
                node.style.strokeWidth = '5px'; // Set stroke width to 5px
                node.setAttribute('r', 12); // Increase circle radius size
            } else {
                node.style.strokeWidth = '2px'; // Restore default stroke width
                node.setAttribute('r', 10); // Restore default circle radius size
            }
        });

        panelLinks.forEach(link => {
            if (highlight) {
                link.style.strokeWidth = '3px'; // Set stroke width to 5px
            } else {
                link.style.strokeWidth = '1px'; // Restore default stroke width
            }
        });
    }

// Get the VisualCode button element
const visualCodeButton = document.getElementById('VisualCodeButton');
const mappingConflictButton = document.getElementById('mappingConflictButton');
const counterNarrativesButton = document.getElementById('counterNarrativesButton');
const localDataButton = document.getElementById('localDataButton');
const networksButton = document.getElementById('networksButton');
const forensicsButton = document.getElementById('forensicsButton');
const csrButton = document.getElementById('csrButton');

// Add click event listener
visualCodeButton.addEventListener('click', function() {
    this.classList.toggle('highlighted');
    toggleHighlight('VisualCode', this.classList.contains('highlighted'));
});

mappingConflictButton.addEventListener('click', function() {
    this.classList.toggle('highlighted');
    toggleHighlight('MappingConflict', this.classList.contains('highlighted'));
});

counterNarrativesButton.addEventListener('click', function() {
    this.classList.toggle('highlighted');
    toggleHighlight('CounterNarrative', this.classList.contains('highlighted'));
});


localDataButton.addEventListener('click', function() {
    this.classList.toggle('highlighted');
    toggleHighlight('LocalData', this.classList.contains('highlighted'));
});

networksButton.addEventListener('click', function() {
    this.classList.toggle('highlighted');
    toggleHighlight('NetworkModels', this.classList.contains('highlighted'));
});

forensicsButton.addEventListener('click', function() {
    this.classList.toggle('highlighted');
    toggleHighlight('CounterForensics', this.classList.contains('highlighted'));
});

csrButton.addEventListener('click', function() {
    this.classList.toggle('highlighted');
    toggleHighlightByTag('csr', this.classList.contains('highlighted'));
});

// press "esc" to reset the function toggleHighlight, toggleHighlightByTag, and the buttons (visualCodeButton, mappingConflictButton, counterNarrativesButton, localDataButton, networksButton, forensicsButton, and csrButton)
function resetAll() {
            // Clear highlighted buttons
            document.querySelectorAll('.panel-button').forEach(button => {
                button.classList.remove('highlighted');
            });

            // Reset highlight states
            d3.selectAll(".node")
                .attr("r", 10)
                .style("stroke-width", "2px");

            d3.selectAll(".link")
                .style("stroke-width", "1px")
                .style("opacity", 0.6);

            // Clear any specific highlight for tags
            Object.keys(originalNodeStrokeColors).forEach(project => {
                const node = d3.select(`.node[data-project="${project}"]`);
                node.style("stroke", originalNodeStrokeColors[project] || ''); // Restore original stroke color
            });

            // Clear stored links
            searchLinks = [];
        }

        // Attach reset function to the Esc key event
        document.addEventListener('keydown', function(event) {
            if (event.key === 'Escape') {
                resetAll();
            }
        });

 </script>

</body>

</html>