From 310dce2067a0458ae2c0ec616c87b4e4e67f7752 Mon Sep 17 00:00:00 2001
From: HOSOKAWA Kenchi <hskwk@inter7.jp>
Date: Sat, 13 Mar 2010 16:58:06 +0900
Subject: [PATCH] 12

---
 dev3/PsychlopsSilverlight3.csproj            |  1 +
 dev3/psychlops/extention/standard/figures.cs | 54 ++++++++++++++++++++++++++++
 2 files changed, 55 insertions(+)
 create mode 100644 dev3/psychlops/extention/standard/figures.cs

diff --git a/dev3/PsychlopsSilverlight3.csproj b/dev3/PsychlopsSilverlight3.csproj
index 7d45238..0b09745 100644
--- a/dev3/PsychlopsSilverlight3.csproj
+++ b/dev3/PsychlopsSilverlight3.csproj
@@ -56,6 +56,7 @@
     <Compile Include="psychlops\core\graphic\canvas.cs" />
     <Compile Include="psychlops\core\graphic\module.cs" />
     <Compile Include="psychlops\core\math\util.cs" />
+    <Compile Include="psychlops\extention\standard\figures.cs" />
     <Compile Include="psychlops\extention\standard\widget.cs" />
     <Compile Include="psychlops\psychlops.cs" />
     <Compile Include="psychlops\core\graphic\shape.cs" />
diff --git a/dev3/psychlops/extention/standard/figures.cs b/dev3/psychlops/extention/standard/figures.cs
new file mode 100644
index 0000000..6d512f6
--- /dev/null
+++ b/dev3/psychlops/extention/standard/figures.cs
@@ -0,0 +1,54 @@
+namespace Psychlops
+{
+
+    public static class Figures
+    {
+        /*
+	    public static void drawGrating(out Image img, int width , int height, double frequency, double contrast, double orientation, double phase)
+	    {
+		    if(img.width != width || img.height != height) img = new Image(width, height);
+		    double xp, yp, r, freq = frequency*2*PI;
+		    for(int y=0; y<height; y++) {
+			    yp = y-height/2.0;
+			    for(int x=0; x<width; x++) {
+				    xp = x-width/2.0;
+				    r = sqrt(xp*xp+yp*yp);
+				    img.pix_raw(x,y,
+				      Color(
+					    0.5+0.5 * contrast* cos(freq* (sin(orientation)*xp-cos(orientation)*yp) + phase)
+				      )
+				    );
+			    }
+		    }
+	    }
+
+        public static void drawGaussian(out Image img, double sigma, double factor)
+	    {
+            const int width = (int)(sigma * 8), height = (int)(sigma * 8);
+            if (img.width != width || img.height != height) img = new Image(width, height);
+            double xp, yp, r, r2;
+		    for(int y=0; y<height; y++) {
+			    yp = y-height/2.0;
+			    for(int x=0; x<width; x++) {
+				    xp = x-width/2.0;
+				    r = sqrt(xp*xp+yp*yp);
+				    r2 = -(r*r) / (2.0*sigma*sigma);
+				    img.pix_raw(x,y,Color(factor*(exp(r2))));
+			    }
+		    }
+	    }
+         * */
+
+        public static void drawGabor(out Image img, double sigma, double wavelength, double contrast, double orientation, double phase)
+	    {
+            int width = (int)(sigma * 8), height = (int)(sigma * 8);
+            //if (img.width != width || img.height != height)
+                img = new Image(width, height);
+            double freq = 2 * Math.PI / wavelength;
+			img.field(
+                (x, y) => new Color(.5 + Math.gaussian(Math.radius(x - width, y - height), width / 8.0) * .5 * Math.sin(phase + x * freq))
+			);
+	    }
+
+    }
+}
-- 
2.11.0