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disallow/undo rotation at low zooms

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This commit is contained in:
Justin R. Miller
2014-05-22 16:47:17 -07:00
parent 035b11e8a0
commit dbd877cb80
1 changed files with 7 additions and 0 deletions
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7
src/map/transform.cpp
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@@ -12,6 +12,7 @@ using namespace llmr;
const double D2R = M_PI / 180.0;
const double R2D = 180.0 / M_PI;
const double M2PI = 2 * M_PI;
const double MIN_ROTATE_SCALE = 8;
Transform::Transform() {
setScale(current.scale);
@@ -248,6 +249,9 @@ void Transform::_setScaleXY(const double new_scale, const double xn, const doubl
constrain(final.scale, final.y);
// Undo rotation at low zooms.
if (final.scale < MIN_ROTATE_SCALE && current.angle) _setAngle(0, 500_milliseconds);
if (duration == 0) {
current.scale = final.scale;
current.x = final.x;
@@ -349,6 +353,9 @@ void Transform::_setAngle(double new_angle, const time duration) {
final.angle = new_angle;
// Prevent rotation at low zooms.
if (final.scale < MIN_ROTATE_SCALE) final.angle = 0;
if (duration == 0) {
current.angle = final.angle;
} else {