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WhirlyGlobe
1.2
A 3D interactive globe toolkit for iOS
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#import <GlobeView.h>
Public Member Functions | |
| (void) | - calcFrustumWidth:height:ll:ur:near:far: |
| (float) | - minHeightAboveGlobe |
| Return min/max valid heights above globe. | |
| (float) | - maxHeightAboveGlobe |
| (void) | - setHeightAboveGlobe: |
| Set the height above globe, taking constraints into account. | |
| (void) | - cancelAnimation |
| Cancel any outstanding animation. | |
| (void) | - animate |
| Renderer calls this every update. | |
| (float) | - calcZbufferRes |
| Calculate the Z buffer resolution. | |
| (float) | - calcEarthZOffset |
| Calculate the z offset to make the earth appear where we want it. | |
| (Eigen::Affine3f) | - calcModelMatrix |
| (Eigen::Vector3f) | - currentUp |
| Return where up (0,0,1) is after model rotation. | |
| (Point3f) | - pointUnproject:width:height:clip: |
| From a screen point calculate the corresponding point in 3-space. | |
| (bool) | - pointOnSphereFromScreen:transform:frameSize:hit: |
| (CGPoint) | - pointOnScreenFromSphere:transform:frameSize: |
| (Eigen::Quaternionf) | - makeRotationToGeoCoord:keepNorthUp: |
Static Public Member Functions | |
| (Eigen::Vector3f) | + prospectiveUp: |
| Given a rotation, where would (0,0,1) wind up. | |
| (WhirlyGlobeView *) | + whirlyGlobeWithScene:frameInterval: |
Properties | |
| float | fieldOfView |
| float | imagePlaneSize |
| float | nearPlane |
| float | farPlane |
| float | heightAboveGlobe |
| The globe has a radius of 1.0 so 1.0 + heightAboveGlobe is the offset from the middle of the globe. | |
| Eigen::Quaternion< float > | rotQuat |
| Quaternion used for rotation from origin state. | |
| NSDate * | lastChangedTime |
| The last time the rotation was changed. | |
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NSObject < WhirlyGlobeAnimationDelegate > * | delegate |
| Used to update position based on time (or whatever other factor you like) | |
| WhirlyGlobe::GlobeScene * | scene |
Globe View Parameters associated with viewing the globe.
| - (void) calcFrustumWidth: | (unsigned int) | frameWidth | |
| height: | (unsigned int) | frameHeight | |
| ll: | (Point2f &) | ll | |
| ur: | (Point2f &) | ur | |
| near: | (float &) | near | |
| far: | (float &) | far | |
Calculate the viewing frustum (which is also the image plane) Need the framebuffer size in pixels as input
| - Eigen: |
Generate the model view matrix for use by OpenGL Or calculation of our own
| - Eigen: | (const WhirlyGlobe::GeoCoord &) | worldLoc | |
| keepNorthUp: | (BOOL) | northUp | |
Construct a rotation to the given location and return it. Doesn't actually do anything yet.
| - (CGPoint) pointOnScreenFromSphere: | (const Point3f &) | worldLoc | |
| transform: | (const Eigen::Affine3f *) | transform | |
| frameSize: | (const Point2f &) | frameSize | |
From a world location (3D), figure out the projection to the screen Returns a point within the frame
| - (bool) pointOnSphereFromScreen: | (CGPoint) | pt | |
| transform: | (const Eigen::Affine3f *) | transform | |
| frameSize: | (const Point2f &) | frameSize | |
| hit: | (Point3f *) | hit | |
Given a location on the screen and the screen size, figure out where we touched the sphere Returns true if we hit and where Returns false if not and the closest point on the sphere
1.7.5.1 
