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Diffstat (limited to 'src/common/util.m')
-rw-r--r-- | src/common/util.m | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/src/common/util.m b/src/common/util.m deleted file mode 100644 index feef76c..0000000 --- a/src/common/util.m +++ /dev/null @@ -1,113 +0,0 @@ -// -// util.m -// TikZiT -// -// Copyright 2010 Aleks Kissinger. All rights reserved. -// -// -// This file is part of TikZiT. -// -// TikZiT is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// TikZiT is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// - -#import "util.h" -#import "math.h" - -NSRect NSRectAroundPointsWithPadding(NSPoint p1, NSPoint p2, float padding) { - return NSMakeRect(MIN(p1.x,p2.x)-padding, - MIN(p1.y,p2.y)-padding, - ABS(p2.x-p1.x)+(2.0f*padding), - ABS(p2.y-p1.y)+(2.0f*padding)); -} - -NSRect NSRectAroundPoints(NSPoint p1, NSPoint p2) { - return NSRectAroundPointsWithPadding(p1, p2, 0.0f); -} - -NSRect NSRectAround4PointsWithPadding(NSPoint p1, NSPoint p2, NSPoint p3, NSPoint p4, float padding) { - float leftMost = MIN(p1.x, p2.x); - leftMost = MIN(leftMost, p3.x); - leftMost = MIN(leftMost, p4.x); - float rightMost = MAX(p1.x, p2.x); - rightMost = MAX(rightMost, p3.x); - rightMost = MAX(rightMost, p4.x); - float topMost = MIN(p1.y, p2.y); - topMost = MIN(topMost, p3.y); - topMost = MIN(topMost, p4.y); - float bottomMost = MAX(p1.y, p2.y); - bottomMost = MAX(bottomMost, p3.y); - bottomMost = MAX(bottomMost, p4.y); - return NSMakeRect(leftMost-padding, - topMost-padding, - (rightMost - leftMost)+(2.0f*padding), - (bottomMost - topMost)+(2.0f*padding)); -} - -NSRect NSRectAround4Points(NSPoint p1, NSPoint p2, NSPoint p3, NSPoint p4) { - return NSRectAround4PointsWithPadding(p1, p2, p3, p4, 0.0f); -} - -float NSDistanceBetweenPoints(NSPoint p1, NSPoint p2) { - float dx = p2.x - p1.x; - float dy = p2.y - p1.y; - return sqrt(dx * dx + dy * dy); -} - -float good_atan(float dx, float dy) { - if (dx > 0) { - return atan(dy/dx); - } else if (dx < 0) { - return M_PI + atan(dy/dx); - } else { - if (dy > 0) return 0.5 * M_PI; - else if (dy < 0) return 1.5 * M_PI; - else return 0; - } -} - -// interpolate on a cubic bezier curve -float bezierInterpolate(float dist, float c0, float c1, float c2, float c3) { - float distp = 1 - dist; - return (distp*distp*distp) * c0 + - 3 * (distp*distp) * dist * c1 + - 3 * (dist*dist) * distp * c2 + - (dist*dist*dist) * c3; -} - -float roundToNearest(float stepSize, float val) { - if (stepSize==0.0f) return val; - else return round(val/stepSize)*stepSize; -} - -float radiansToDegrees (float radians) { - return (radians * 180.0f) / M_PI; -} - -int normaliseAngleDeg (int degrees) { - while (degrees >= 360) { - degrees -= 360; - } - while (degrees <= -360) { - degrees += 360; - } - return degrees; -} - -static char ahex[] = -{'a','b','c','d','e','f','g','h','i','j', - 'A','B','C','D','E','F'}; - -NSString *alphaHex(unsigned short sh) { - if (sh > 255) return @"!!"; - return [NSString stringWithFormat:@"%c%c", ahex[sh/16], ahex[sh%16]]; -} - - |