在applet制作一个三角形多边形 [英] Making a triangle polygon in an applet

问题描述

  INT大小= RNG.randomNum（0，（（1000 / numOfShapes）* 10））;
        INT xOrigin = RNG.randomNum（0，2000）;
        INT yOrigin = RNG.randomNum（0，1080）;        INT [] xPoints = NULL;
        INT [] ypoints中= NULL;
        多边形p值=新多边形（xPoints，ypoints中，3）;
        //g2.draw(new Line2D.Double（xOrigin，yOrigin，xOrigin +大小，yOrigin +大小））;
        //g2.draw(new Line2D.Double（xOrigin +大小，yOrigin +大小，xOrigin +大小，yOrigin））;
        //g2.draw(new Line2D.Double（xOrigin，yOrigin，xOrigin +大小，yOrigin））;
        g2.fillPolygon（P）;
 

g2.draw则使用3次让我一个很好的直角三角形，但我希望它是一个用颜色填充。我应该怎么出去转向那些点成三角形的多边形，因此它可以被填充？

解决方案

  INT xpoints [] = {xOrigin，xOrigin +大小，xOrigin +大小};
    INT ypoints中[] = {yOrigin，yOrigin +大小，yOrigin};    g2.fillPolygon（xpoints，ypoints中，3）;
 

        int size = RNG.randomNum(0, ((1000/numOfShapes)*10));
        int xOrigin = RNG.randomNum(0, 2000);
        int yOrigin = RNG.randomNum(0, 1080);

        int[] xPoints = null;
        int[] yPoints = null;
        Polygon p = new Polygon(xPoints, yPoints,3);
        //g2.draw(new Line2D.Double(xOrigin, yOrigin, xOrigin+size, yOrigin+size));
        //g2.draw(new Line2D.Double(xOrigin+size, yOrigin+size, xOrigin + size, yOrigin));
        //g2.draw(new Line2D.Double(xOrigin, yOrigin, xOrigin+size, yOrigin));
        g2.fillPolygon(p);

The 3 times g2.draw is used makes me a nice right triangle, but I want it to be filled with a color. How should I go forth turning those points into a triangle polygon so it can be filled?

解决方案

    int xpoints[] = {xOrigin, xOrigin+size, xOrigin + size};
    int ypoints[] = {yOrigin , yOrigin+size, yOrigin};

    g2.fillPolygon(xpoints, ypoints, 3);

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