September Morn Update
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Ingy döt Net
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6856 changed files with 141342 additions and 21127 deletions
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@ -1,108 +1,73 @@
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public class Line
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#include <functional>
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#include <algorithm>
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#include <utility>
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void WuDrawLine(float x0, float y0, float x1, float y1,
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const std::function<void(int x, int y, float brightess)>& plot) {
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auto ipart = [](float x) -> int {return int(std::floor(x));};
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auto round = [](float x) -> float {return std::round(x);};
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auto fpart = [](float x) -> float {return x - std::floor(x);};
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auto rfpart = [=](float x) -> float {return 1 - fpart(x);};
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const bool steep = abs(y1 - y0) > abs(x1 - x0);
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if (steep) {
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std::swap(x0,y0);
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std::swap(x1,y1);
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}
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if (x0 > x1) {
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std::swap(x0,x1);
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std::swap(y0,y1);
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}
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const float dx = x1 - x0;
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const float dy = y1 - y0;
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const float gradient = (dx == 0) ? 1 : dy/dx;
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int xpx11;
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float intery;
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{
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private double x0, y0, x1, y1;
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private Color foreColor;
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private byte lineStyleMask;
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private int thickness;
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private float globalm;
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public Line(double x0, double y0, double x1, double y1, Color color, byte lineStyleMask, int thickness)
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{
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this.x0 = x0;
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this.y0 = y0;
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this.y1 = y1;
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this.x1 = x1;
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this.foreColor = color;
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this.lineStyleMask = lineStyleMask;
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this.thickness = thickness;
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const float xend = round(x0);
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const float yend = y0 + gradient * (xend - x0);
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const float xgap = rfpart(x0 + 0.5);
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xpx11 = int(xend);
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const int ypx11 = ipart(yend);
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if (steep) {
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plot(ypx11, xpx11, rfpart(yend) * xgap);
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plot(ypx11 + 1, xpx11, fpart(yend) * xgap);
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} else {
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plot(xpx11, ypx11, rfpart(yend) * xgap);
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plot(xpx11, ypx11 + 1, fpart(yend) * xgap);
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}
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intery = yend + gradient;
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}
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private void plot(Bitmap bitmap, double x, double y, double c)
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{
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int alpha = (int)(c * 255);
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if (alpha > 255) alpha = 255;
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if (alpha < 0) alpha = 0;
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Color color = Color.FromArgb(alpha, foreColor);
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if (BitmapDrawHelper.checkIfInside((int)x, (int)y, bitmap))
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{
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bitmap.SetPixel((int)x, (int)y, color);
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}
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}
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int ipart(double x) { return (int)x;}
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int round(double x) {return ipart(x+0.5);}
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double fpart(double x) {
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if(x<0) return (1-(x-Math.Floor(x)));
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return (x-Math.Floor(x));
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}
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double rfpart(double x) {
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return 1-fpart(x);
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}
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public void draw(Bitmap bitmap) {
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bool steep = Math.Abs(y1-y0)>Math.Abs(x1-x0);
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double temp;
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if(steep){
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temp=x0; x0=y0; y0=temp;
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temp=x1;x1=y1;y1=temp;
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}
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if(x0>x1){
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temp = x0;x0=x1;x1=temp;
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temp = y0;y0=y1;y1=temp;
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}
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double dx = x1-x0;
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double dy = y1-y0;
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double gradient = dy/dx;
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double xEnd = round(x0);
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double yEnd = y0+gradient*(xEnd-x0);
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double xGap = rfpart(x0+0.5);
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double xPixel1 = xEnd;
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double yPixel1 = ipart(yEnd);
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if(steep){
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plot(bitmap, yPixel1, xPixel1, rfpart(yEnd)*xGap);
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plot(bitmap, yPixel1+1, xPixel1, fpart(yEnd)*xGap);
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}else{
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plot(bitmap, xPixel1,yPixel1, rfpart(yEnd)*xGap);
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plot(bitmap, xPixel1, yPixel1+1, fpart(yEnd)*xGap);
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}
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double intery = yEnd+gradient;
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xEnd = round(x1);
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yEnd = y1+gradient*(xEnd-x1);
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xGap = fpart(x1+0.5);
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double xPixel2 = xEnd;
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double yPixel2 = ipart(yEnd);
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if(steep){
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plot(bitmap, yPixel2, xPixel2, rfpart(yEnd)*xGap);
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plot(bitmap, yPixel2+1, xPixel2, fpart(yEnd)*xGap);
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}else{
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plot(bitmap, xPixel2, yPixel2, rfpart(yEnd)*xGap);
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plot(bitmap, xPixel2, yPixel2+1, fpart(yEnd)*xGap);
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}
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if(steep){
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for(int x=(int)(xPixel1+1);x<=xPixel2-1;x++){
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plot(bitmap, ipart(intery), x, rfpart(intery));
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plot(bitmap, ipart(intery)+1, x, fpart(intery));
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intery+=gradient;
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}
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}else{
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for(int x=(int)(xPixel1+1);x<=xPixel2-1;x++){
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plot(bitmap, x,ipart(intery), rfpart(intery));
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plot(bitmap, x, ipart(intery)+1, fpart(intery));
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intery+=gradient;
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}
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}
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int xpx12;
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{
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const float xend = round(x1);
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const float yend = y1 + gradient * (xend - x1);
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const float xgap = rfpart(x1 + 0.5);
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xpx12 = int(xend);
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const int ypx12 = ipart(yend);
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if (steep) {
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plot(ypx12, xpx12, rfpart(yend) * xgap);
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plot(ypx12 + 1, xpx12, fpart(yend) * xgap);
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} else {
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plot(xpx12, ypx12, rfpart(yend) * xgap);
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plot(xpx12, ypx12 + 1, fpart(yend) * xgap);
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}
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}
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if (steep) {
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for (int x = xpx11 + 1; x < xpx12; x++) {
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plot(ipart(intery), x, rfpart(intery));
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plot(ipart(intery) + 1, x, fpart(intery));
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intery += gradient;
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}
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} else {
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for (int x = xpx11 + 1; x < xpx12; x++) {
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plot(x, ipart(intery), rfpart(intery));
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plot(x, ipart(intery) + 1, fpart(intery));
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intery += gradient;
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}
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}
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}
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108
Task/Xiaolin-Wus-line-algorithm/C/xiaolin-wus-line-algorithm-4.c
Normal file
108
Task/Xiaolin-Wus-line-algorithm/C/xiaolin-wus-line-algorithm-4.c
Normal file
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@ -0,0 +1,108 @@
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public class Line
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{
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private double x0, y0, x1, y1;
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private Color foreColor;
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private byte lineStyleMask;
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private int thickness;
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private float globalm;
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public Line(double x0, double y0, double x1, double y1, Color color, byte lineStyleMask, int thickness)
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{
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this.x0 = x0;
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this.y0 = y0;
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this.y1 = y1;
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this.x1 = x1;
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this.foreColor = color;
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this.lineStyleMask = lineStyleMask;
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this.thickness = thickness;
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}
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private void plot(Bitmap bitmap, double x, double y, double c)
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{
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int alpha = (int)(c * 255);
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if (alpha > 255) alpha = 255;
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if (alpha < 0) alpha = 0;
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Color color = Color.FromArgb(alpha, foreColor);
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if (BitmapDrawHelper.checkIfInside((int)x, (int)y, bitmap))
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{
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bitmap.SetPixel((int)x, (int)y, color);
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}
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}
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int ipart(double x) { return (int)x;}
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int round(double x) {return ipart(x+0.5);}
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double fpart(double x) {
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if(x<0) return (1-(x-Math.Floor(x)));
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return (x-Math.Floor(x));
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}
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double rfpart(double x) {
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return 1-fpart(x);
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}
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public void draw(Bitmap bitmap) {
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bool steep = Math.Abs(y1-y0)>Math.Abs(x1-x0);
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double temp;
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if(steep){
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temp=x0; x0=y0; y0=temp;
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temp=x1;x1=y1;y1=temp;
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}
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if(x0>x1){
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temp = x0;x0=x1;x1=temp;
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temp = y0;y0=y1;y1=temp;
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}
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double dx = x1-x0;
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double dy = y1-y0;
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double gradient = dy/dx;
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double xEnd = round(x0);
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double yEnd = y0+gradient*(xEnd-x0);
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double xGap = rfpart(x0+0.5);
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double xPixel1 = xEnd;
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double yPixel1 = ipart(yEnd);
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if(steep){
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plot(bitmap, yPixel1, xPixel1, rfpart(yEnd)*xGap);
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plot(bitmap, yPixel1+1, xPixel1, fpart(yEnd)*xGap);
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}else{
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plot(bitmap, xPixel1,yPixel1, rfpart(yEnd)*xGap);
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plot(bitmap, xPixel1, yPixel1+1, fpart(yEnd)*xGap);
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}
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double intery = yEnd+gradient;
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xEnd = round(x1);
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yEnd = y1+gradient*(xEnd-x1);
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xGap = fpart(x1+0.5);
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double xPixel2 = xEnd;
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double yPixel2 = ipart(yEnd);
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if(steep){
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plot(bitmap, yPixel2, xPixel2, rfpart(yEnd)*xGap);
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plot(bitmap, yPixel2+1, xPixel2, fpart(yEnd)*xGap);
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}else{
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plot(bitmap, xPixel2, yPixel2, rfpart(yEnd)*xGap);
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plot(bitmap, xPixel2, yPixel2+1, fpart(yEnd)*xGap);
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}
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if(steep){
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for(int x=(int)(xPixel1+1);x<=xPixel2-1;x++){
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plot(bitmap, ipart(intery), x, rfpart(intery));
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plot(bitmap, ipart(intery)+1, x, fpart(intery));
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intery+=gradient;
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}
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}else{
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for(int x=(int)(xPixel1+1);x<=xPixel2-1;x++){
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plot(bitmap, x,ipart(intery), rfpart(intery));
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plot(bitmap, x, ipart(intery)+1, fpart(intery));
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intery+=gradient;
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}
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}
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}
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}
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