Petr Sloup
965b88d7c8
Save context state only when it's actually necessary
2015-10-16 16:30:16 +02:00
Petr Sloup
d950dada31
Minor type fix
2015-10-16 16:30:16 +02:00
Petr Sloup
e49f529fe6
Add typedefs for functions returning tiles/images
2015-10-16 16:30:16 +02:00
Petr Sloup
6f9fa4c12e
Minor documentation improvements
2015-10-16 16:30:04 +02:00
Petr Sloup
b816128728
Avoid assignment in return statement
2015-10-16 15:46:51 +02:00
Petr Sloup
a7cde96056
Simplified wrapX handling
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"Unwrap" the coordinates obtained from transformations and utilize wrapX
capabilities of the sources to handle calculations of TileRanges and
unwrapped tile extents.
2015-10-16 09:28:43 +02:00
Petr Sloup
52a7c5e582
Rename some private/local variables to increase readability
2015-10-16 09:28:43 +02:00
Petr Sloup
f52f9b6817
Rename ol.RASTER_REPROJ_* constants to full ol.RASTER_REPROJECTION_*
2015-10-16 09:28:43 +02:00
Petr Sloup
9f8ab48f1f
Minor improvements based on pull request comments
2015-10-16 09:28:43 +02:00
Petr Sloup
8fb1d1f244
Remove usage of various goog.* functions
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goog.isNull, goog.isDefAndNotNull and goog.array.*
2015-10-16 09:28:43 +02:00
Petr Sloup
f3d5d16a82
Remove use of goog.isDef
2015-10-16 09:28:43 +02:00
Petr Sloup
783acfa961
Use ol.math.clamp instead of goog.math.clamp
2015-10-16 09:28:43 +02:00
Petr Sloup
3f897cfb79
Minor typo fix
2015-10-16 09:28:43 +02:00
Petr Sloup
94caa07168
Minor code style, documentation and typo fixes
2015-10-16 09:28:43 +02:00
Petr Sloup
5388f96551
Reproject image sources only if actually needed
2015-10-16 09:28:42 +02:00
Petr Sloup
59bce75d2a
Improved documentation
2015-10-16 09:28:42 +02:00
Petr Sloup
7a1533925a
Reprojection code refactoring and cleaning
2015-10-16 09:28:42 +02:00
Petr Sloup
7864ed7861
Force subdivision when transformation returns infinite coordinate
2015-10-16 09:28:42 +02:00
Petr Sloup
03c75a8648
Transformation caching during reprojection triangulation
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This usually saves around 30-35% of transformation calls.
2015-10-16 09:28:42 +02:00
Petr Sloup
726bcbef83
Alternative reprojection triangulation strategy
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The quads are now subdivided more granually (to 2 instead of 4), which
usually leads to reduced number of triangles and higher performance.
2015-10-16 09:28:42 +02:00
Petr Sloup
016df5b902
Minor ol.reproj.Image fixes
2015-10-16 09:28:42 +02:00
Petr Sloup
14e20e23a0
Correctly reproject projections with undefined units
2015-10-16 09:28:42 +02:00
Petr Sloup
aad5f94556
Minor type fix in ol.reproj.Image
2015-10-16 09:28:42 +02:00
Petr Sloup
615b54eb67
Use error threshold for image sources reprojection
2015-10-16 09:28:42 +02:00
Petr Sloup
fc23a38692
Take target extent into account when ensuring minimal reproj subdivision
2015-10-16 09:28:41 +02:00
Petr Sloup
3b1d72202a
Correctly reproject sources in wrappable projection
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With extent smaller than the projection extent
2015-10-16 09:28:41 +02:00
Petr Sloup
4c236a64b8
Handle canvas clip antialiasing during reprojection
2015-10-16 09:28:41 +02:00
Petr Sloup
3cc8291df4
Support pixelRatio during reprojection
2015-10-16 09:28:41 +02:00
Petr Sloup
168b675191
Add reprojectionErrorThreshold option to the tiled image sources
2015-10-16 09:28:41 +02:00
Petr Sloup
ebc1bc0096
Better handling of tilegrids without extent during reprojection
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For WMTS source, the tilegrid has no extent, but the projection can
2015-10-16 09:28:41 +02:00
Petr Sloup
be6bf00d74
Add defines for certain reprojection constants
2015-10-16 09:28:41 +02:00
Petr Sloup
f481070f82
Handle tilegrids without extent during tile reprojection
2015-10-16 09:28:41 +02:00
Petr Sloup
9a460b5f6b
Handle cross-browser canvas antialiasing issues during reprojection
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By doing strictly 1 drawImage per triangle; triangle overlapping and
using different blending mode.
2015-10-16 09:28:41 +02:00
Petr Sloup
8b38928aad
Make rendering of reprojection edges configurable
2015-10-16 09:28:41 +02:00
Petr Sloup
30cd0aa584
Improve reprojection performance
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Utilize the numerical shifting during reprojection to easily reduce
complexity of the linear system that needs to be solved.
2015-10-16 09:28:41 +02:00
Petr Sloup
8ab197eba6
Optimize the reprojection by stitching the sources prior to rendering
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This solves canvas antialiasing issues and also simplifies the code
handling wrapX in the source projection.
2015-10-16 09:28:41 +02:00
Petr Sloup
6482ccf2f7
Make ol.reproj.Triangulation a class
2015-10-16 09:28:41 +02:00
Petr Sloup
be0a0de759
Integrate image reprojection with ol.source.Image
2015-10-16 09:28:41 +02:00
Petr Sloup
c205323ff2
Reproject correctly when transform returns +-Infinity values
2015-10-16 09:28:41 +02:00
Petr Sloup
63084d30e9
Improve numerical stability of reprojection
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By shifting the source points before calculating the affine transform to
obtain values from similar ranges (inputs and outputs of the transform).
2015-10-16 09:28:41 +02:00
Petr Sloup
9b82f19cc2
Simplify triangle-shifting logic for reprojection
2015-10-16 09:28:41 +02:00
Petr Sloup
bc74273208
Reproject every image only once per triangle
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If the triangle has to be shifted, determine if the image has to be rendered shifted or not.
2015-10-16 09:28:40 +02:00
Petr Sloup
6e08fc9e13
Rename triangles to triangulation to be more precise
2015-10-16 09:28:40 +02:00
Petr Sloup
bf65b8a4fe
Stronger typing of triangles and triangulation
2015-10-16 09:28:40 +02:00
Petr Sloup
ac76989447
Detect and handle triangles (tiles) crossing the dateline (projection edge)
2015-10-16 09:28:40 +02:00
Petr Sloup
ebc3f24671
Clamp the triangulation vertices if partially outside source extent
2015-10-16 09:28:40 +02:00
Petr Sloup
fcffce46b4
More robust way of handling non-global projections
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If the target projection has specified extent, it is respected.
Also adds various checks to optimize performance and/or
prevent potential errors.
2015-10-16 09:28:40 +02:00
Petr Sloup
2cc2027353
More precise and robust way of calculating source resolution
2015-10-16 09:28:40 +02:00
Petr Sloup
c425b9c0e6
Verify triangulation against source/target extents
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If we do this here, we can avoid some computations on triangles that will
be unused in the future anyway + reduce problems with non-global projections
without specified extents.
2015-10-16 09:28:40 +02:00
Petr Sloup
1222287f22
Add ol.reproj
2015-10-16 09:28:40 +02:00
