ajout premiere partie TP5

TP5/sketch_240321a/sketch_240321a.pde

+//globally
+//declare the min and max variables that you need in parseInfo
+float minX, maxX;
+float minY, maxY;
+int totalCount; // total number of places
+int minPopulation, maxPopulation;
+int minSurface, maxSurface;
+int minAltitude, maxAltitude;
+//declare the variables corresponding to the column ids for x and y
+int x = 1;
+int y = 2;
+
+// and the tables in which the city coordinates will be stored
+float xList[];
+float yList[];
+
+void setup() {
+  size(800,800);
+  readData();
+}
+
+void draw(){
+  background(255);
+  color black = color(0);
+  for (int i = 0 ; i < totalCount ; ++i) {
+    // draw a point at the coordinates of the city
+    float x = mapX(xList[i]);
+    float y = mapY(yList[i]);
+    stroke(black);
+    point(x, y);
+  }
+
+  updatePixels();
+
+}
+
+void readData() {
+  String[] lines = loadStrings("./villes.tsv");
+  
+  // check that the file has been loaded
+  if (lines == null) {
+    println("Error loading file");
+    exit();
+  } else {
+    println("File loaded");
+  }
+  
+  parseInfo(lines[0]); // read the header line
+  
+  xList = new float[totalCount];
+  yList = new float[totalCount];
+
+  for (int i = 2 ; i < totalCount ; ++i) {
+    String[] columns = split(lines[i], TAB);
+    xList[i-2] = float (columns[x]);
+    yList[i-2] = float (columns[y]);
+  }
+
+}
+
+void parseInfo(String line) {
+  String infoString = line.substring(2); // remove the #
+  String[] infoPieces = split(infoString, ',');
+  totalCount = int(infoPieces[0]);
+  minX = float(infoPieces[1]);
+  maxX = float(infoPieces[2]);
+  minY = float(infoPieces[3]);
+  maxY = float(infoPieces[4]);
+  minPopulation = int(infoPieces[5]);
+  maxPopulation = int(infoPieces[6]);
+  minSurface = int(infoPieces[7]);
+  maxSurface = int(infoPieces[8]);
+  minAltitude = int(infoPieces[9]);
+  maxAltitude = int(infoPieces[10]);
+}
+
+float mapX(float x) {
+ return map(x, minX, maxX, 0, 800);
+}
+
+float mapY(float y) {
+  return map(y, maxY, minY, 0, 800);
+}