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| author |  Chris Xiong <chirs241097@gmail.com>
| 2015-10-26 22:52:36 +0800 |
|---|---|---|
| committer | Chris Xiong <chirs241097@gmail.com>
| 2015-10-26 22:52:36 +0800 |
| commit | 3bd383baf6a17e734329e1fc677c7e86283db772 (patch) | |
| tree | 69a9148087577f797624ceb9c71323a2563d6bb4 /archive/hge/CxImage/ximath.cpp | |
| parent | 543e4f570be9b279ba558ca61cc02cda251af384 (diff) | |
| download | bullet-lab-remix-3bd383baf6a17e734329e1fc677c7e86283db772.tar.xz | |
Added support for relative line numbers.
Added instructions for, brk and cont. (They are still untested...)
Parser code cleanup. Removed garbage output to stderr.
Reorganize the repository structure.
Updated BLR2 code move it into archive.
Added BLR1 files.
Diffstat (limited to 'archive/hge/CxImage/ximath.cpp')
| -rw-r--r-- | archive/hge/CxImage/ximath.cpp | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/archive/hge/CxImage/ximath.cpp b/archive/hge/CxImage/ximath.cpp new file mode 100644 index 0000000..0175184 --- /dev/null +++ b/archive/hge/CxImage/ximath.cpp @@ -0,0 +1,97 @@ +#include "ximage.h"
+#include "ximath.h"
+#include <math.h>
+
+//this module should contain some classes for geometrical transformations
+//usable with selections, etc... once it's done, that is. :)
+
+CxPoint2::CxPoint2()
+{
+ x=y=0.0f;
+}
+
+CxPoint2::CxPoint2(float const x_, float const y_)
+{
+ x=x_;
+ y=y_;
+}
+
+CxPoint2::CxPoint2(CxPoint2 const &p)
+{
+ x=p.x;
+ y=p.y;
+}
+
+float CxPoint2::Distance(CxPoint2 const p2)
+{
+ return (float)sqrt((x-p2.x)*(x-p2.x)+(y-p2.y)*(y-p2.y));
+}
+
+float CxPoint2::Distance(float const x_, float const y_)
+{
+ return (float)sqrt((x-x_)*(x-x_)+(y-y_)*(y-y_));
+}
+
+CxRect2::CxRect2()
+{
+}
+
+CxRect2::CxRect2(float const x1_, float const y1_, float const x2_, float const y2_)
+{
+ botLeft.x=x1_;
+ botLeft.y=y1_;
+ topRight.x=x2_;
+ topRight.y=y2_;
+}
+
+CxRect2::CxRect2(CxRect2 const &p)
+{
+ botLeft=p.botLeft;
+ topRight=p.topRight;
+}
+
+float CxRect2::Surface() const
+/*
+ * Returns the surface of rectangle.
+ */
+{
+ return (topRight.x-botLeft.x)*(topRight.y-botLeft.y);
+}
+
+CxRect2 CxRect2::CrossSection(CxRect2 const &r2) const
+/*
+ * Returns crossection with another rectangle.
+ */
+{
+ CxRect2 cs;
+ cs.botLeft.x=max(botLeft.x, r2.botLeft.x);
+ cs.botLeft.y=max(botLeft.y, r2.botLeft.y);
+ cs.topRight.x=min(topRight.x, r2.topRight.x);
+ cs.topRight.y=min(topRight.y, r2.topRight.y);
+ if (cs.botLeft.x<=cs.topRight.x && cs.botLeft.y<=cs.topRight.y) {
+ return cs;
+ } else {
+ return CxRect2(0,0,0,0);
+ }//if
+}
+
+CxPoint2 CxRect2::Center() const
+/*
+ * Returns the center point of rectangle.
+ */
+{
+ return CxPoint2((topRight.x+botLeft.x)/2.0f, (topRight.y+botLeft.y)/2.0f);
+}
+
+float CxRect2::Width() const
+//returns rectangle width
+{
+ return topRight.x-botLeft.x;
+}
+
+float CxRect2::Height() const
+//returns rectangle height
+{
+ return topRight.y-botLeft.y;
+}
+
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