如何使用Java Graphics2D绘制一组QuadCurves [英] How to paint a group of QuadCurves using Java Graphics2D
问题描述
我在绘图中有很多QuadCurve2D方法，但是当我填充它们时，它们实际上并不填充整个图像。
填充和曲线代码：
g2.setStroke（new BasicStroke（5））;
QuadCurve2D earLeft1 =新的QuadCurve2D.Double（145,155,137.5,49,150,49）;
g2.draw（earLeft1）;
QuadCurve2D earLeft2 =新的QuadCurve2D.Double（150，49，156.25，49，200，100）;
g2.draw（earLeft2）;
QuadCurve2D betweenEars = new QuadCurve2D.Double（200，100，237.5，88，262.5，87.5）;
g2.draw（betweenEars）;
QuadCurve2D earRight1 =新的QuadCurve2D.Double（262.5,87.5,287.5,25,300,25）;
g2.draw（earRight1）;
QuadCurve2D earRight2 =新的QuadCurve2D.Double（300，25，312.5，25，337.5，137.5）;
g2.draw（earRight2）;
CubicCurve2D headPhoneLeft =新CubicCurve2D.Double（145，155，75，175，100，250，150，250）;
g2.draw（headPhoneLeft）;
CubicCurve2D headPhoneRight = new CubicCurve2D.Double（337.5，137.5，387.5，137.5，393.75，188，362.5，225）;
g2.draw（headPhoneRight）;
QuadCurve2D headbandTop1 =新的QuadCurve2D.Double（109，177，150，75，225，50）;
g2.draw（headbandTop1）;
QuadCurve2D headbandTop2 =新QuadCurve2D.Double（225，50，300，50，372，150）;
g2.draw（headbandTop2）;
QuadCurve2D headbandBottom1 =新的QuadCurve2D.Double（135,155,150,112.5,212.5,78）;
g2.draw（headbandBottom1）;
QuadCurve2D headbandBottom2 =新的QuadCurve2D.Double（212.5，78，306.25，78，351，137.5）;
g2.draw（headbandBottom2）;
QuadCurve2D faceBottomLeft =新的QuadCurve2D.Double（150,250,162.5,275,200,300）;
g2.draw（faceBottomLeft）;
QuadCurve2D faceBottomRight =新的QuadCurve2D.Double（362.5,225,363.5,237.5,350,262.5）;
g2.draw（faceBottomRight）;
CubicCurve2D leftArm =新的CubicCurve2D.Double（200,300,87.5,300,87.5,375,188.5,362.5）;
g2.draw（leftArm）;
CubicCurve2D rightArm =新的CubicCurve2D.Double（350,262.5,425,237.5,450,300,375,325）;
g2.draw（rightArm）;
QuadCurve2D leftLegOuter =新的QuadCurve2D.Double（188.5，362.5，154，425，200，512.5）;
g2.draw（leftLegOuter）;
QuadCurve2D rightLegOuter =新的QuadCurve2D.Double（375,325,388.5,356.25,387.5,412.5）;
g2.draw（rightLegOuter）;
QuadCurve2D leftFootTop =新的QuadCurve2D.Double（200,512.5,125,500,130,562.5）;
g2.draw（leftFootTop）;
QuadCurve2D leftFootBottom =新的QuadCurve2D.Double（130，562.5，175，575，262.5，562.5）;
g2.draw（leftFootBottom）;
QuadCurve2D leftLegInner =新的QuadCurve2D.Double（262.5,562.5,237.5,400,268.75,363）;
g2.draw（leftLegInner）;
QuadCurve2D rightLegInner = new QuadCurve2D.Double（268.75，363，318.75，362.5，337.5，475）;
g2.draw（rightLegInner）;
QuadCurve2D rightFootBottom =新QuadCurve2D.Double（337.5，475，400，480，455，470）;
g2.draw（rightFootBottom）;
QuadCurve2D rightFootTop =新的QuadCurve2D.Double（455,470,450,400,387.5,412.5）;
g2.draw（rightFootTop）;
CubicCurve2D tailInner = new CubicCurve2D.Double（268.75，363，287.5，450,125，387.5，62.5，400）;
g2.draw（tailInner）;
// QuadCurve2D tailInner1 =新的QuadCurve2D.Double（268.75，363，275，387.5，200，400）;
//g2.draw(tailInner1）;
// QuadCurve2D tailInner2 =新的QuadCurve2D.Double（200,400,125,387.5,62.5,400）;
//g2.draw(tailInner2）;
QuadCurve2D tailOuter1 =新的QuadCurve2D.Double（62.5,400,25,425,200,437.5）;
g2.draw（tailOuter1）;
QuadCurve2D tailOuter2 =新的QuadCurve2D.Double（200，437.5，287.5，425，300，375）;
g2.draw（tailOuter2）;
int [] x = {175,200,225,225,287,300,309,337,325,309,302,292,240,227,226,215};其中，
int [] y = {225,210,237,200,187,212,187,187,262,262,230,268,275,250,277,281};其中，
GeneralPath mouthAndTeeth = new GeneralPath（）;
mouthAndTeeth.moveTo（x [0]，y [0]）;
for（int index = 1; index< x.length; index ++）{
mouthAndTeeth.lineTo（x [index]，y [index]）;
};
mouthAndTeeth.closePath（）;
g2.draw（mouthAndTeeth）;
/ *
g2.fill（earLeft1）;
g2.fill（earLeft2）;
g2.fill（earRight1）;
g2.fill（earRight2）;
g2.fill（betweenEars）;
g2.fill（headbandBottom1）;
g2.fill（headbandBottom2）;
g2.fill（headbandTop1）;
g2.fill（headbandTop2）;
g2.fill（headPhoneLeft）;
g2.fill（headPhoneRight）;
g2.fill（faceBottomLeft）;
g2.fill（faceBottomRight）;
g2.fill（leftArm）;
g2.fill（rightArm）;
g2.fill（leftFootBottom）;
g2.fill（leftFootTop）;
g2.fill（rightFootBottom）;
g2.fill（rightFootTop）;
g2.fill（leftLegInner）;
g2.fill（leftLegOuter）;
g2.fill（rightLegInner）;
g2.fill（rightLegOuter）;
//g2.fill (tailInner1）;
//g2.fill (tailInner2）;
g2.fill（tailOuter1）;
g2.fill（tailOuter2）;
* /
这是我唯一的解决方案，但它没有这样做。建议？
A解决方案可能是将形状绘制到 更好的解决方案可能是将图形封装到 然后根据容器的可用空间... 您使用的将满足需求，例如，使用 I have a lot of QuadCurve2D methods in a drawing, but when I fill them they don't actually fill the whole image. Code for fill and curves: This has been my only solution but it's not doing it. Suggestions? "A" solution might be to paint the "shape" to a A better solution might be to encapsulate the drawing into a And then scale the shape based on the available space of the container... Which you use will come down to needs, for example, using a 这篇关于如何使用Java Graphics2D绘制一组QuadCurves的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！ BufferedImage <
Shape 并使用 Shape＃createTransformedShape 来代替。
public class Cat extends Path2D.Double {
public Cat（）{
// Left Ear
moveTo（145，155）;
curveTo（145,155,137.5,49,150,49）;
moveTo（150，49）;
curveTo（150，49，156.25，49，200，100）;
//在耳朵之间
moveTo（200，100）;
curveTo（200，100，237.5，88，262.5，87.5）;
//右耳
moveTo（262.5，87.5）;
curveTo（262.5，87.5，287.5，25，300，25）;
moveTo（300，25）;
curveTo（300，25，312.5，25，337.5，137.5）;
//头电话左
moveTo（300，25）;
append（新的CubicCurve2D.Double（145，155，75，175，100，250，150，250），false）;
moveTo（337.5，137.5）;
append（新的CubicCurve2D.Double（337.5，137.5，387.5，137.5，393.75，188，362.5，225），false）;
moveTo（109，177）;
curveTo（109，177，150，75，225，50）;
moveTo（225，50）;
curveTo（225，50，300，50，372，150）;
moveTo（135，155）;
curveTo（135,155,150,112.5,212.5,78）;
moveTo（212.5，78）;
curveTo（212.5，78，306.25，78，351，137.5）;
moveTo（150，250）;
curveTo（150,250,162.5,275,200,300）;
moveTo（362.5，225）;
curveTo（362.5,225,363.5,237.5,350,262.5）;
moveTo（200，300）;
append（新的CubicCurve2D.Double（200,300,87.5,300,87.5,375,188.5,362.5），false）;
moveTo（350，262.5）;
append（新的CubicCurve2D.Double（350，262.5，425，237.5，450，300，375，325），false）;
moveTo（188.5，362.5）;
curveTo（188.5，362.5，154，425，200，512.5）;
moveTo（375，325）;
curveTo（375,325,388.5,356.25,387.5,412.5）;
moveTo（200,512.5）;
curveTo（200,512.5,125,500,130,562.5）;
moveTo（130，562.5）;
curveTo（130,562.5,175,575,262.5,562.5）;
moveTo（262.5，562.5）;
curveTo（262.5,562.5,237.5,400,268.75,363）;
moveTo（268.75，363）;
curveTo（268.75，363，318.75，362.5，337.5，475）;
moveTo（337.5，475）;
curveTo（337.5，475，400，480，455，470）;
moveTo（455，470）;
curveTo（455,470,450,400,387.5,412.5）;
moveTo（268.75，363）;
append（新的CubicCurve2D.Double（268.75，363，287.5，450，125，387.5，62.5，400），false）;
moveTo（62.5，400）;
curveTo（62.5，400，25，425，200，437.5）;
moveTo（200，437.5）;
curveTo（200,437.5,287.5,425,300,375）;
int [] x = {175,200,225,225,287,300,309,337,325,309,302,292,240,227,226,215};其中，
int [] y = {225,210,237,200,187,212,187,187,262,262,230,268,275,250,277,281};其中，
GeneralPath mouthAndTeeth = new GeneralPath（）;
mouthAndTeeth.moveTo（x [0]，y [0]）;
for（int index = 1; index< x.length; index ++）{
mouthAndTeeth.lineTo（x [index]，y [index]）;
}
mouthAndTeeth.closePath（）;
append（mouthAndTeeth，false）;
}
}
import java.awt.BasicStroke;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.CubicCurve2D;
import java.awt.geom.GeneralPath;
import java.awt.geom.Path2D;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class Test {
public static void main（String [] args）{
new Test（）;
$ b $ public Test（）{
EventQueue.invokeLater（new Runnable（）{
@Override
public void run（）{
尝试{
UIManager.setLookAndFeel（UIManager.getSystemLookAndFeelClassName（））;
} catch（ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex）{
ex.printStackTrace（）;
}
JFrame frame = new JFrame（Testing）;
frame.setDefaultCloseOperation（JFrame.EXIT_ON_CLOSE）;
frame.add（new TestPane（））;
frame.pack（）;
frame.setLocationRelativeTo（null）;
frame.setVisible（true）;
}
}）;
}
public class TestPane extends JPanel {
private cat cat;
public TestPane（）{
cat = new Cat（）;
}
@Override
public Dimension getPreferredSize（）{
return new Dimension（200，200）;
}
保护void paintComponent（Graphics g）{
super.paintComponent（g）;
Graphics2D g2d =（Graphics2D）g.create（）;
g2d.setStroke（new BasicStroke（5））;
int catWidth = cat.getBounds（）。x + cat.getBounds（）。width;
int catHeight = cat.getBounds（）。y + cat.getBounds（）。height;
int width = getWidth（） - 1;
int height = getHeight（） - 1;
double scaleWidth = width /（double）catWidth;
double scaleHeight = height /（double）catHeight;
double scale = Math.min（scaleHeight，scaleWidth）;
AffineTransform at = AffineTransform.getScaleInstance（scale，scale）;
Shape shape = cat.createTransformedShape（at）;
g2d.draw（shape）;
g2d.dispose（）;
}
}
}
Shape 这样的内容，不会让您以不同的颜色对每个部分着色。g2.setStroke(new BasicStroke(5));
QuadCurve2D earLeft1 = new QuadCurve2D.Double(145, 155, 137.5, 49, 150, 49);
g2.draw(earLeft1);
QuadCurve2D earLeft2 = new QuadCurve2D.Double(150, 49, 156.25, 49, 200, 100);
g2.draw(earLeft2);
QuadCurve2D betweenEars = new QuadCurve2D.Double(200, 100, 237.5, 88, 262.5, 87.5);
g2.draw(betweenEars);
QuadCurve2D earRight1 = new QuadCurve2D.Double(262.5, 87.5, 287.5, 25, 300, 25);
g2.draw(earRight1);
QuadCurve2D earRight2 = new QuadCurve2D.Double(300, 25, 312.5, 25, 337.5, 137.5);
g2.draw(earRight2);
CubicCurve2D headPhoneLeft = new CubicCurve2D.Double(145, 155, 75, 175, 100, 250, 150, 250);
g2.draw(headPhoneLeft);
CubicCurve2D headPhoneRight = new CubicCurve2D.Double(337.5, 137.5, 387.5, 137.5, 393.75, 188, 362.5, 225);
g2.draw(headPhoneRight);
QuadCurve2D headbandTop1 = new QuadCurve2D.Double(109, 177, 150, 75, 225, 50);
g2.draw(headbandTop1);
QuadCurve2D headbandTop2 = new QuadCurve2D.Double(225, 50, 300, 50, 372, 150);
g2.draw(headbandTop2);
QuadCurve2D headbandBottom1 = new QuadCurve2D.Double(135, 155, 150, 112.5, 212.5, 78);
g2.draw(headbandBottom1);
QuadCurve2D headbandBottom2 = new QuadCurve2D.Double(212.5, 78, 306.25, 78, 351, 137.5);
g2.draw(headbandBottom2);
QuadCurve2D faceBottomLeft = new QuadCurve2D.Double(150, 250, 162.5, 275, 200, 300);
g2.draw(faceBottomLeft);
QuadCurve2D faceBottomRight = new QuadCurve2D.Double(362.5, 225, 363.5, 237.5, 350, 262.5);
g2.draw(faceBottomRight);
CubicCurve2D leftArm = new CubicCurve2D.Double(200, 300, 87.5, 300, 87.5, 375, 188.5, 362.5);
g2.draw(leftArm);
CubicCurve2D rightArm = new CubicCurve2D.Double(350, 262.5, 425, 237.5, 450, 300, 375, 325);
g2.draw(rightArm);
QuadCurve2D leftLegOuter = new QuadCurve2D.Double(188.5, 362.5, 154, 425, 200, 512.5);
g2.draw(leftLegOuter);
QuadCurve2D rightLegOuter = new QuadCurve2D.Double(375, 325, 388.5, 356.25, 387.5, 412.5);
g2.draw(rightLegOuter);
QuadCurve2D leftFootTop = new QuadCurve2D.Double(200, 512.5, 125, 500, 130, 562.5);
g2.draw(leftFootTop);
QuadCurve2D leftFootBottom = new QuadCurve2D.Double(130, 562.5, 175, 575, 262.5, 562.5);
g2.draw(leftFootBottom);
QuadCurve2D leftLegInner = new QuadCurve2D.Double(262.5, 562.5, 237.5, 400, 268.75, 363);
g2.draw(leftLegInner);
QuadCurve2D rightLegInner = new QuadCurve2D.Double(268.75, 363, 318.75, 362.5, 337.5, 475);
g2.draw(rightLegInner);
QuadCurve2D rightFootBottom = new QuadCurve2D.Double(337.5, 475, 400, 480, 455, 470);
g2.draw(rightFootBottom);
QuadCurve2D rightFootTop = new QuadCurve2D.Double(455, 470, 450, 400, 387.5, 412.5);
g2.draw(rightFootTop);
CubicCurve2D tailInner = new CubicCurve2D.Double(268.75, 363, 287.5, 450,125, 387.5, 62.5, 400);
g2.draw(tailInner);
//QuadCurve2D tailInner1 = new QuadCurve2D.Double(268.75, 363, 275, 387.5, 200, 400);
//g2.draw(tailInner1);
//QuadCurve2D tailInner2 = new QuadCurve2D.Double(200, 400, 125, 387.5, 62.5, 400);
//g2.draw(tailInner2);
QuadCurve2D tailOuter1 = new QuadCurve2D.Double(62.5, 400, 25, 425, 200, 437.5);
g2.draw(tailOuter1);
QuadCurve2D tailOuter2 = new QuadCurve2D.Double(200, 437.5, 287.5, 425, 300, 375);
g2.draw(tailOuter2);
int[] x = {175, 200, 225, 225, 287, 300, 309, 337, 325, 309, 302, 292, 240, 227, 226, 215};
int[] y = {225, 210, 237, 200, 187, 212, 187, 187, 262, 262, 230, 268, 275, 250, 277, 281};
GeneralPath mouthAndTeeth = new GeneralPath();
mouthAndTeeth.moveTo(x[0], y[0]);
for (int index = 1; index < x.length; index++) {
mouthAndTeeth.lineTo(x[index], y[index]);
};
mouthAndTeeth.closePath();
g2.draw(mouthAndTeeth);
/*
g2.fill(earLeft1);
g2.fill(earLeft2);
g2.fill(earRight1);
g2.fill(earRight2);
g2.fill(betweenEars);
g2.fill(headbandBottom1);
g2.fill(headbandBottom2);
g2.fill(headbandTop1);
g2.fill(headbandTop2);
g2.fill(headPhoneLeft);
g2.fill(headPhoneRight);
g2.fill(faceBottomLeft);
g2.fill(faceBottomRight);
g2.fill(leftArm);
g2.fill(rightArm);
g2.fill(leftFootBottom);
g2.fill(leftFootTop);
g2.fill(rightFootBottom);
g2.fill(rightFootTop);
g2.fill(leftLegInner);
g2.fill(leftLegOuter);
g2.fill(rightLegInner);
g2.fill(rightLegOuter);
//g2.fill(tailInner1);
//g2.fill(tailInner2);
g2.fill(tailOuter1);
g2.fill(tailOuter2);
*/
BufferedImage and simply scale the image, but this will scale the stroke/line size as well.Shape and use Shape#createTransformedShape instead.public class Cat extends Path2D.Double {
public Cat() {
//Left Ear
moveTo(145, 155);
curveTo(145, 155, 137.5, 49, 150, 49);
moveTo(150, 49);
curveTo(150, 49, 156.25, 49, 200, 100);
// Between Ears
moveTo(200, 100);
curveTo(200, 100, 237.5, 88, 262.5, 87.5);
// Right ear
moveTo(262.5, 87.5);
curveTo(262.5, 87.5, 287.5, 25, 300, 25);
moveTo(300, 25);
curveTo(300, 25, 312.5, 25, 337.5, 137.5);
// Head phone left
moveTo(300, 25);
append(new CubicCurve2D.Double(145, 155, 75, 175, 100, 250, 150, 250), false);
moveTo(337.5, 137.5);
append(new CubicCurve2D.Double(337.5, 137.5, 387.5, 137.5, 393.75, 188, 362.5, 225), false);
moveTo(109, 177);
curveTo(109, 177, 150, 75, 225, 50);
moveTo(225, 50);
curveTo(225, 50, 300, 50, 372, 150);
moveTo(135, 155);
curveTo(135, 155, 150, 112.5, 212.5, 78);
moveTo(212.5, 78);
curveTo(212.5, 78, 306.25, 78, 351, 137.5);
moveTo(150, 250);
curveTo(150, 250, 162.5, 275, 200, 300);
moveTo(362.5, 225);
curveTo(362.5, 225, 363.5, 237.5, 350, 262.5);
moveTo(200, 300);
append(new CubicCurve2D.Double(200, 300, 87.5, 300, 87.5, 375, 188.5, 362.5), false);
moveTo(350, 262.5);
append(new CubicCurve2D.Double(350, 262.5, 425, 237.5, 450, 300, 375, 325), false);
moveTo(188.5, 362.5);
curveTo(188.5, 362.5, 154, 425, 200, 512.5);
moveTo(375, 325);
curveTo(375, 325, 388.5, 356.25, 387.5, 412.5);
moveTo(200, 512.5);
curveTo(200, 512.5, 125, 500, 130, 562.5);
moveTo(130, 562.5);
curveTo(130, 562.5, 175, 575, 262.5, 562.5);
moveTo(262.5, 562.5);
curveTo(262.5, 562.5, 237.5, 400, 268.75, 363);
moveTo(268.75, 363);
curveTo(268.75, 363, 318.75, 362.5, 337.5, 475);
moveTo(337.5, 475);
curveTo(337.5, 475, 400, 480, 455, 470);
moveTo(455, 470);
curveTo(455, 470, 450, 400, 387.5, 412.5);
moveTo(268.75, 363);
append(new CubicCurve2D.Double(268.75, 363, 287.5, 450, 125, 387.5, 62.5, 400), false);
moveTo(62.5, 400);
curveTo(62.5, 400, 25, 425, 200, 437.5);
moveTo(200, 437.5);
curveTo(200, 437.5, 287.5, 425, 300, 375);
int[] x = {175, 200, 225, 225, 287, 300, 309, 337, 325, 309, 302, 292, 240, 227, 226, 215};
int[] y = {225, 210, 237, 200, 187, 212, 187, 187, 262, 262, 230, 268, 275, 250, 277, 281};
GeneralPath mouthAndTeeth = new GeneralPath();
mouthAndTeeth.moveTo(x[0], y[0]);
for (int index = 1; index < x.length; index++) {
mouthAndTeeth.lineTo(x[index], y[index]);
}
mouthAndTeeth.closePath();
append(mouthAndTeeth, false);
}
}
import java.awt.BasicStroke;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.AffineTransform;
import java.awt.geom.CubicCurve2D;
import java.awt.geom.GeneralPath;
import java.awt.geom.Path2D;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class Test {
public static void main(String[] args) {
new Test();
}
public Test() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class TestPane extends JPanel {
private Cat cat;
public TestPane() {
cat = new Cat();
}
@Override
public Dimension getPreferredSize() {
return new Dimension(200, 200);
}
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2d = (Graphics2D) g.create();
g2d.setStroke(new BasicStroke(5));
int catWidth = cat.getBounds().x + cat.getBounds().width;
int catHeight = cat.getBounds().y + cat.getBounds().height;
int width = getWidth() - 1;
int height = getHeight() - 1;
double scaleWidth = width / (double)catWidth;
double scaleHeight = height / (double)catHeight;
double scale = Math.min(scaleHeight, scaleWidth);
AffineTransform at = AffineTransform.getScaleInstance(scale, scale);
Shape shape = cat.createTransformedShape(at);
g2d.draw(shape);
g2d.dispose();
}
}
}
Shape like this, won't allow you to color individual sections differently
