Commit graph

194 commits

Author SHA1 Message Date
Dane Springmeyer
8301e28b13 more marker tests on polygons - able to detect change from ecc5acbdb9 2014-07-22 12:17:40 -07:00
Dane Springmeyer
5688a93858 update expected text images - refs #2277 #2276 2014-06-20 20:29:01 -07:00
Dane Springmeyer
8c3683f41f updated expected test images after #2272 2014-06-19 16:41:45 -07:00
Dane Springmeyer
f523acdee4 add testcase for halo-comp-op - refs #2267 2014-06-19 16:28:28 -07:00
artemp
6669765ce1 visual tests : add text-halo-opacity 2014-06-17 17:22:05 +01:00
Dane Springmeyer
874cd00a2d update a few visual tests 2014-04-24 21:53:17 -07:00
Dane Springmeyer
9e9747ffad Merge branch 'master' of github.com:mapnik/mapnik into expr-v2
Conflicts:
	src/agg/process_building_symbolizer.cpp
	src/cairo_context.cpp
	src/cairo_renderer.cpp
	src/grid/process_building_symbolizer.cpp
	src/grid/process_line_pattern_symbolizer.cpp
	src/grid/process_text_symbolizer.cpp
	tests/python_tests/images/support/marker-text-line-scale-factor-0.899.png
	tests/python_tests/images/support/marker-text-line-scale-factor-1.5.png
	tests/python_tests/images/support/marker-text-line-scale-factor-1.png
	tests/python_tests/images/support/marker-text-line-scale-factor-10.png
	tests/python_tests/images/support/marker-text-line-scale-factor-100.png
	tests/python_tests/images/support/marker-text-line-scale-factor-2.png
	tests/python_tests/images/support/marker-text-line-scale-factor-5.png
	tests/visual_tests/images/lines-5-200-200-1.0-agg-reference.png
	tests/visual_tests/images/lines-5-200-200-2.0-agg-reference.png
	tests/visual_tests/images/lines-5-400-400-1.0-agg-reference.png
	tests/visual_tests/images/lines-5-400-400-2.0-agg-reference.png
	tests/visual_tests/images/lines-5-600-600-1.0-agg-reference.png
	tests/visual_tests/images/lines-5-600-600-2.0-agg-reference.png
	tests/visual_tests/images/lines-5-800-800-1.0-agg-reference.png
	tests/visual_tests/images/lines-5-800-800-2.0-agg-reference.png
	tests/visual_tests/images/lines-6-200-200-2.0-agg-reference.png
	tests/visual_tests/images/lines-6-400-400-2.0-agg-reference.png
	tests/visual_tests/images/lines-6-600-600-2.0-agg-reference.png
	tests/visual_tests/images/lines-6-800-800-2.0-agg-reference.png
	tests/visual_tests/test.py
2014-04-24 21:44:28 -07:00
Dane Springmeyer
67357568a5 move line rendering tests to visual tests 2014-04-24 21:00:00 -07:00
Dane Springmeyer
cc855ac7e2 update expected visual tests - 39737c5f1d accidentaly overwrote some using 2.3.x code 2014-04-24 19:16:00 -07:00
Dane Springmeyer
39737c5f1d Merge branch '2.3.x' of github.com:mapnik/mapnik
Conflicts:
	.travis.yml
	CHANGELOG.md
	bindings/python/build.py
	include/mapnik/feature_style_processor_context.hpp
	include/mapnik/feature_style_processor_impl.hpp
	include/mapnik/json/feature_collection_grammar.hpp
	include/mapnik/json/feature_collection_parser.hpp
	include/mapnik/json/feature_generator_grammar.hpp
	include/mapnik/json/feature_parser.hpp
	include/mapnik/json/geojson_generator.hpp
	include/mapnik/json/geometry_generator_grammar.hpp
	include/mapnik/json/geometry_parser.hpp
	plugins/input/gdal/gdal_featureset.cpp
	plugins/input/geojson/geojson_datasource.cpp
	plugins/input/occi/occi_featureset.cpp
	plugins/input/osm/osm_featureset.cpp
	plugins/input/postgis/build.py
	plugins/input/postgis/connection.hpp
	src/agg/agg_renderer.cpp
	src/build.py
	src/cairo_context.cpp
	src/datasource_cache.cpp
	src/grid/process_line_symbolizer.cpp
	src/grid/process_polygon_pattern_symbolizer.cpp
	src/grid/process_polygon_symbolizer.cpp
	src/grid/process_text_symbolizer.cpp
	src/json/feature_grammar.cpp
	tests/cpp_tests/fontset_runtime_test.cpp
	tests/visual_tests/images/collision-600-400-1.0-agg-reference.png
	tests/visual_tests/images/image-filters-multi-blur-512-512-1.0-agg-reference.png
	tests/visual_tests/images/image-filters-multi-blur-512-512-2.0-agg-reference.png
	tests/visual_tests/images/image-filters-multi-blur-inflate-512-512-1.0-agg-reference.png
	tests/visual_tests/images/image-filters-multi-blur-inflate-512-512-2.0-agg-reference.png
	tests/visual_tests/images/lines-1-400-400-2.0-agg-reference.png
	tests/visual_tests/images/lines-1-600-600-1.0-agg-reference.png
	tests/visual_tests/images/lines-1-600-600-2.0-agg-reference.png
	tests/visual_tests/images/lines-2-200-200-1.0-agg-reference.png
	tests/visual_tests/images/lines-2-400-400-1.0-cairo-reference.png
	tests/visual_tests/images/lines-2-400-400-2.0-agg-reference.png
	tests/visual_tests/images/lines-2-600-600-2.0-agg-reference.png
	tests/visual_tests/images/lines-2-800-800-2.0-agg-reference.png
	tests/visual_tests/images/lines-3-400-400-2.0-agg-reference.png
	tests/visual_tests/images/lines-3-600-600-1.0-agg-reference.png
	tests/visual_tests/images/lines-3-600-600-2.0-agg-reference.png
	tests/visual_tests/images/lines-5-200-200-1.0-agg-reference.png
	tests/visual_tests/images/lines-5-200-200-2.0-agg-reference.png
	tests/visual_tests/images/lines-5-400-400-1.0-agg-reference.png
	tests/visual_tests/images/lines-5-400-400-2.0-agg-reference.png
	tests/visual_tests/images/lines-5-600-600-1.0-agg-reference.png
	tests/visual_tests/images/lines-5-600-600-2.0-agg-reference.png
	tests/visual_tests/images/lines-5-800-800-1.0-agg-reference.png
	tests/visual_tests/images/lines-5-800-800-2.0-agg-reference.png
	tests/visual_tests/images/lines-6-200-200-1.0-agg-reference.png
	tests/visual_tests/images/lines-6-200-200-2.0-agg-reference.png
	tests/visual_tests/images/lines-6-400-400-1.0-agg-reference.png
	tests/visual_tests/images/lines-6-600-600-1.0-agg-reference.png
	tests/visual_tests/images/lines-6-600-600-2.0-agg-reference.png
	tests/visual_tests/images/lines-6-800-800-1.0-agg-reference.png
	tests/visual_tests/images/lines-6-800-800-2.0-agg-reference.png
	tests/visual_tests/images/lines-shield-600-600-2.0-agg-reference.png
	tests/visual_tests/images/lines-shield-600-600-2.0-cairo-reference.png
	tests/visual_tests/images/shield-on-polygon-600-400-1.0-agg-reference.png
	tests/visual_tests/images/shield-on-polygon-600-400-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-490-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-495-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-495-100-2.0-cairo-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-497-100-1.0-cairo-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-497-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-497-100-2.0-cairo-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-498-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-499-100-1.0-cairo-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-499-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-499-100-2.0-cairo-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-500-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-501-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-502-100-1.0-cairo-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-502-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-505-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-505-100-2.0-cairo-reference.png
	tests/visual_tests/images/shieldsymbolizer-1-510-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-3-490-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-3-495-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-3-497-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-3-498-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-3-499-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-3-500-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-3-501-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-3-502-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-3-505-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-3-510-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-4-490-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-4-495-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-4-497-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-4-498-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-4-499-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-4-500-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-4-501-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-4-502-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-4-505-100-2.0-agg-reference.png
	tests/visual_tests/images/shieldsymbolizer-4-510-100-2.0-agg-reference.png
	tests/visual_tests/test.py
2014-04-24 14:50:55 -07:00
Dane Springmeyer
0e8fa50215 update a few expected tests due to differences I presume are related to freetype version 2014-04-09 00:42:06 -04:00
Dane Springmeyer
659772168b add (currently buggy) visual test images for #2202 2014-04-03 17:12:18 -07:00
Dane Springmeyer
e94876ebe4 Merge pull request #2160 from MapQuest/expr-v2-group-symbolizer
Group Symbolizer
2014-04-03 11:52:21 -07:00
Dane Springmeyer
811e93cdc4 update visual tests against freetype 2.5.3 2014-03-10 11:38:42 -07:00
Dane Springmeyer
6433d9482e Merge branch 'master' of github.com:mapnik/mapnik into expr-v2
Conflicts:
	include/mapnik/symbolizer.hpp
	src/agg/agg_renderer.cpp
	src/agg/process_line_pattern_symbolizer.cpp
	src/agg/process_line_symbolizer.cpp
	src/agg/process_polygon_pattern_symbolizer.cpp
	src/agg/process_polygon_symbolizer.cpp
	src/cairo_renderer.cpp
	src/feature_type_style.cpp
	src/grid/process_line_pattern_symbolizer.cpp
	src/grid/process_line_symbolizer.cpp
	src/grid/process_markers_symbolizer.cpp
	src/grid/process_polygon_pattern_symbolizer.cpp
	src/grid/process_polygon_symbolizer.cpp
2014-03-10 00:05:56 -07:00
Dane Springmeyer
277ae93d2c make inflated image for blurring opt-in via 'image-filters-inflate' option - refs #2165
Conflicts:
	src/agg/agg_renderer.cpp
2014-02-27 11:17:09 -08:00
Dane Springmeyer
4e957c9cac make inflated image for blurring opt-in via 'image-filters-inflate' option - refs #2165 2014-02-27 10:11:17 -08:00
Jordan Hollinger
533820c63f Merge branch 'expr-v2' of github.com:mapnik/mapnik into expr-v2-group-symbolizer
Conflicts:
	src/text/placement_finder.cpp
	tests/visual_tests/test.py
2014-02-25 14:21:51 -05:00
Dane Springmeyer
14c02e76a7 Merge pull request #2138 from MapQuest/jmh-text-layouts
Multiple text layouts in text symbolizer
2014-02-18 17:59:56 -08:00
Jordan Hollinger
07dc6e37a2 Merge branch 'expr-v2' of github.com:mapnik/mapnik into expr-v2-group-symbolizer
Conflicts:
	include/mapnik/attribute_collector.hpp
2014-02-18 18:22:01 -05:00
Jordan Hollinger
bbd2cfd40f Grid renderer implementation for group symbolizer.
This uses common process_group_symbolizer for most of the work.
Add reference grids for visual tests.
2014-02-18 16:37:41 -05:00
Stephan Bösch-Plepelits
96e5129c9a Create tests for point-symbolizer, using expressions for parameters
- there are two versions:
  - point-symbolizer-expressions: file
  - point-symbolizer-expressions-all: additionally test
    allow-overlap, opacity, transform, ignore-placement, comp-op
    which are not supported right now
2014-02-11 04:27:36 +01:00
Stephan Bösch-Plepelits
3882707123 Create tests for polygon-symbolizer, using expressions for parameters
- there are two versions:
  - polygon-symbolizer-expressions: fill, fill-opacity, gamma
  - polygon-symbolizer-expressions-all: additionally test
    comp-op which is not supported right now
2014-02-11 04:26:30 +01:00
Stephan Bösch-Plepelits
676e1c7bfc Added grid-reference.json files missing in 79fde58c0e 2014-02-11 03:49:53 +01:00
Jordan Hollinger
e4afefa514 Update text-multi-layout visual tests to demonstrate placement list with layout nodes and layout/format node nesting. Add new images for line-multi-layout tests. 2014-02-10 20:01:35 -05:00
Jordan Hollinger
e0125afdae Update test cases. 2014-02-10 09:03:50 -05:00
Jordan Hollinger
d8eda4898e Merge branch 'expr-v2' of github.com:mapnik/mapnik into jmh-text-layouts
Conflicts:
	tests/visual_tests/test.py
2014-02-10 07:38:25 -05:00
Jordan Hollinger
586bb3b91a Tests for multiple text layout placements. 2014-01-30 07:10:18 -05:00
Matt Amos
0ad3441b68 Update tests affected by alignment change.
These are mostly text affected because it is multi-line. The
"lines-5" test case text is improved - it lines up now. The
"line-offset" test case is not multi-line, but the differences
appear to be minimal.
2014-01-28 20:42:15 +00:00
Matt Amos
17626d5501 Added visual test for multi-line label alignment.
Calculation of label alignment in multi-line labels seems to be
off. This test reproduces it by laying out a series of multi-line
labels along an S-shaped curve. In all these cases, the vertical
bar character should, to within a few pixels, line up. The
orientation at sharper corners is still a little off, but likely
due to discontinuities.
2014-01-28 19:10:04 +00:00
Dane Springmeyer
7520c15e86 Merge branch 'master' of github.com:mapnik/mapnik into expr-v2 2014-01-22 20:48:07 -08:00
Dane Springmeyer
047373772d update a few expected test images 2014-01-22 20:46:18 -08:00
Dane Springmeyer
98f923b9b6 Merge branch 'master' of github.com:mapnik/mapnik into expr-v2
Conflicts:
	tests/visual_tests/test.py
2014-01-17 20:04:30 -08:00
Dane Springmeyer
49aadae244 Merge branch 'master' of github.com:mapnik/mapnik into expr-v2
Conflicts:
	tests/visual_tests/test.py
2014-01-17 20:04:09 -08:00
Dane Springmeyer
66d8885828 enable further test 2014-01-17 20:03:30 -08:00
Dane Springmeyer
8e30ae8160 one more test for #2023 2014-01-17 19:55:43 -08:00
Dane Springmeyer
2a953034f5 one more test for #2023 2014-01-17 19:55:13 -08:00
Dane Springmeyer
9a312958ef tests for #2023 2014-01-17 19:46:47 -08:00
Dane Springmeyer
abfd4e530d tests for #2023 2014-01-17 19:41:17 -08:00
Matt Amos
eacdff2f7d Added test for markers compared with points.
Both are rendering the same SVG marker, at the same size. The
output should (and does, for Cairo & Grid renderers) look like
identical rows of spots. But the AGG one does not.

This is an attempt to create a test case for issue #2117.
2014-01-02 18:51:01 +00:00
Dane Springmeyer
1b71a91668 update expected test grids post #2087 2013-11-22 00:47:47 -08:00
Dane Springmeyer
73faa94306 tests: smaller font sizes and ensure labels are on top 2013-11-08 18:41:00 -08:00
Dane Springmeyer
0250538149 add support for geometry-transform in pattern symbolizers - closes #2065 2013-11-05 16:40:09 -08:00
Dane Springmeyer
6bbd8210f8 add more test files - amends 9886d84 - refs #2052 2013-10-30 12:00:57 -07:00
Dane Springmeyer
adabe3022d add harfbuzz branch testcases 2013-10-23 23:59:14 -07:00
Dane Springmeyer
805be3daa5 tests: add visual test using multiple blurs 2013-10-03 17:52:52 -07:00
Dane Springmeyer
de45801a37 Add visual test of multiple chained image filters 2013-10-03 16:32:15 -07:00
Dane Springmeyer
82e1b37281 allow single color colorize-alpha 2013-09-27 16:11:23 -07:00
Dane Springmeyer
423a8007ba another colorize-alpha test - this one likely exposing a bug - refs #1371 2013-09-27 15:14:58 -07:00
Dane Springmeyer
2287b0a7b9 move colorize-alpha to visual test suite - refs #1371 2013-09-27 14:49:24 -07:00
Dane Springmeyer
68ff3ceead add color-to-alpha image-filter - closes #2023 2013-09-26 16:14:40 -07:00
Dane Springmeyer
09544849b9 move colorizer tests to visual suite 2013-09-25 14:08:47 -07:00
Dane Springmeyer
8d79008e9e move over other colortable test to visual tests 2013-09-25 14:02:52 -07:00
Dane Springmeyer
cb80fb8226 move/expand gdal nodata tests to visual suite - refs #2023 2013-09-25 13:13:18 -07:00
Dane Springmeyer
4713ddf8d6 reduced testcase for #1995 - refs #1452 and #1369 2013-09-20 13:31:11 -07:00
Dane Springmeyer
9df4deac73 consistent use of agg::rgba8_pre to construct premultiplied colors - refs #2011 2013-09-19 19:41:46 -07:00
Dane Springmeyer
d054d47884 Add new test images - refs #2011 2013-09-19 19:16:46 -07:00
Dane Springmeyer
c5dd5487a5 Merge pull request #1966 from mapnik/background-image-comp-op
Map background-image-comp-op and background-image-opacity
2013-09-05 12:25:47 -07:00
Petr Dlouhý
edf170c428 LinePatternSymbolizer visual test 2013-08-22 12:55:56 +02:00
Dane Springmeyer
fad9af5263 add support for applying custom comp_op and opacity when blending map background image into background color at render time - refs mapnik/mapnik-support#8 2013-07-25 01:00:38 -04:00
Dane Springmeyer
e24b894868 add regression test for #1952 2013-07-23 20:00:42 -04:00
Dane Springmeyer
a6a16304cc regression test for gdal filter-factor 2013-07-19 18:56:50 -04:00
Dane Springmeyer
4f2e1993bf tests: add a pseudo-tiled test for preventing regression of #1477 2013-07-19 16:07:12 -04:00
Dane Springmeyer
87a2787a40 add visual tests for group-by feature - refs #916 2013-07-18 18:35:14 -04:00
Dane Springmeyer
86bc7d6c11 fix svg parser to ignore empty groups - closes #1944 2013-07-10 17:25:34 -04:00
Dane Springmeyer
022dd43834 add testcase for #1944 2013-07-10 17:23:17 -04:00
Dane Springmeyer
63a06a9aab fix handling of opacity when rendering svg with cairo - closes #1943 2013-07-10 16:19:28 -04:00
AJ Ashton
6814834892 Add test for translating geometries 2013-06-28 17:22:31 -04:00
Dane Springmeyer
36814bcb2e add expected (currently failing) test for #1931 2013-06-28 15:03:55 -04:00
Dane Springmeyer
98d21de168 add currently failing test for #1913 2013-06-13 20:20:03 -07:00
Dane Springmeyer
df6e9685d6 add visual test to ensure that #1501 does not regress 2013-06-13 20:09:24 -07:00
Dane Springmeyer
b2fc3d7d57 update expected grid outputs 2013-05-21 08:46:07 -07:00
Dane Springmeyer
866320be14 line clipping drops points so filter osm data to ensure only lines are being used in test 2013-05-21 08:46:05 -07:00
Dane Springmeyer
c901f8b46e tests for 1849 2013-05-20 12:50:26 -07:00
Dane Springmeyer
71870a47b5 renable lines-shield test and always generate missing reference images - closes #1696 2013-05-16 13:17:48 -07:00
Dane Springmeyer
1c03b9fefa update expected grid test 2013-05-16 10:17:26 -07:00
Dane Springmeyer
f905632b92 visual testcase for #1744 2013-03-11 15:09:04 -07:00
Dane Springmeyer
1ed656831d start testing scale_factor - overwrite all expected results 2013-03-11 13:36:31 -07:00
Dane Springmeyer
e66d007627 add halo-rasterizer option for text symbolizer
- closes #1298
  - allows for much faster halo drawing and simliar quality for
    radius values in the 1-2 px range
  - also moves grid_renderer away from using freetype stroker completely
    since halo quality is not critical for this renderer
2013-03-08 20:32:39 -08:00
Dane Springmeyer
c36795e0a9 respect both sx and sy in setting up affine transform for raster scaling since they may be different - closes #1748 2013-03-06 17:41:20 -08:00
Dane Springmeyer
4922f76858 visual tests - stop testing agg v cairo and rather cairo v cairo - add test for #1600 2013-03-06 11:32:27 -08:00
Dane Springmeyer
c184579c43 finish hsla transformation image-filter 2013-02-28 12:19:40 -05:00
Dane Springmeyer
12dfcef3a0 add support for background-image to cairo_renderer and refactor into setup function to match agg/grid renderers - closes #1724 2013-02-20 17:55:53 -08:00
Dane Springmeyer
cc431505e0 fix #1487 (marker placement when spacing < width) and add tests 2013-01-04 13:42:13 -08:00
Dane Springmeyer
900774f2a7 add a visual test for label line placement collision 2012-12-20 17:27:09 -08:00
Dane Springmeyer
18a0521676 add a visual test for marker middle point placement on lines - refs #1604 2012-12-10 15:55:13 -08:00
Dane Springmeyer
7d408d523c close #1548 with explict handling of point geometries and amend 629d768eae for cairo/grid renderers to ensure proper placement on lines (refs #1604,#1350,#1607) 2012-12-02 19:53:44 -08:00
Dane Springmeyer
bf33e0eaa5 pretty print expected json grids in visual tests 2012-11-29 18:02:38 -08:00
Dane Springmeyer
6d1dec63c7 Merge pull request #1615 from strk/master-fix-marker-multi-policy-test
Fix marker-multi-policy test. Closes #1612
2012-11-29 17:57:01 -08:00
Sandro Santilli
54d75d946b Fix "whole" multi centroid computation
Includes testcase.
Closes #1606
2012-11-29 17:55:13 +01:00
Sandro Santilli
60e3f81331 Fix marker-multi-policy test. Closes #1612 2012-11-29 15:00:26 +01:00
Dane Springmeyer
c95b8ff8d7 fix visual tests by restoring old hack to prevent rendering of all names 2012-11-27 18:15:56 -08:00
Dane Springmeyer
5fb3949d91 update expected grid results after #1584/4efb6ea 2012-11-21 19:26:05 -08:00
Dane Springmeyer
3ce7ae7fc9 visual test improvements: comment non-critical raster-tiff tests, start testing grids, and ignore alpha when comparing agg output to cairo 2012-11-20 15:08:53 -08:00