Question

我希望我能在这里找到一些帮助，我一直在研究和尝试，但似乎无法找到解决方案。我正在使用处理2.0.3。

我有一个SVG文件，它是美国各州的地图。我有一个excel表保存为.csv，包含每个州的数据。我一直试图找到一种方法来点击显示的SVG文件中的状态，并让它显示excel表中数据的某种图形。

我的问题是：如何使SVG文件可以点击，以及如何将其链接到数据？我在互联网上看到的解决方案是创建一个不可见的形状图层，所有状态的颜色略有不同，点击鼠标时检测到的颜色将确定颜色并从数据中读取颜色。我试图重新创建我发现的例子，但它们没有意义，我觉得我在墙上。如果有人有任何帮助或建议，这将有助于一吨！提前谢谢！

到目前为止，

代码大部分改编自http://forum.processing.org/one/topic/need-help-with-mouse-over-text-box-display-on-us-map.html。它不起作用......：/

PShape states;
PShape buff;
Table crime;
PGraphics pg;
int rowCount;
int start = 100;
int yrButton = 0;
float crimeButton = 0;
boolean mouseShowText = false;
String[] textToShow = {"HI","RI","CT","MA","ME","NH","VT","NY","NJ","FL","NC","OH","IN","IA",
 "CO","NV","PA","DE","MD","MI","WA","CA","OR","IL","MN","WI","DC","NM","VA","AK","GA","AL",
  "TN","AZ","UT","ND","SD","NE","MS","MO","AR","OK","KS","LA"};
void setup(){
  size(1000,700);
  crime = loadTable("crime.csv");
  states = loadShape("states.svg");
  rowCount = crime.getRowCount();
  pg = createGraphics(700,500);
  pg.beginDraw();
  pg.background(0);
  makeHiddenMap(textToShow);
  pg.endDraw();
  noLoop();
}

void draw(){
  background(222,250,248);
  fill(200);
  rect(0,0,575,400);
  shape(states,0,0,700,500);
}

void makeHiddenMap(String[] states){
  pg.stroke(255);
  for(int i=0;i<states.length;i++){
    PShape buff = states.getChild(states[i]);
    buff.disableStyle();
    pg.fill(count+10,0,0);
    pg.noStroke();
    pg.shape(buff,0,0);
    textToShow[count] = states[i] + winText;
    count++;
  }
}

void showMouseOver(){
  String textMouseOver=textToShow[numberOfState];
  if (!textMouseOver.equals("")){
    float posX=textX;
    float posY=textY;
    if (posX+textWidth(textMouseOver)+10 > width){
      posX=width-textWidth(textMouseOver)-12;
    }
    fill(255,255,44);
    rect(posX+14,posY+4,textWidth(textMouseOver)+5,20);
    fill(0);
    text(textMouseOver,posX+16,posY+4+16);
  }
}

使用Processing，创建与SVG的交互性

0 个答案: