* add Line.point_to_t() and tests
* add Arc.point_to_t() and tests
* add a bunch of failing arc/line intersection tests
This commit contains a bunch of failing arc/line intersections that I
and other people have run into.
All these tests are fixed in the following commit.
* better implementation of Arc.intersect(Line)
Fixesmathandy/svgpathtools#35.
This commit fixes all the arc/line intersection test cases added in the
previous commit.
This implementation provides special handling in Arc.intersect() when
`self` is a non-rotated Arc and `other_seg` is a Line. In this case
it uses the straight-forward closed-form solution to identify the
intersection points.
Rotated Arcs and Arcs intersecting with non-Line objects still use
the pre-existing intersection code, that part is totally untouched by
this commit.
* Some progress (and added CONTRIBUTING.md)
* fixed documentation line-width to be PEP 8 compliant
* fixed documentation line-width to be PEP 8 compliant
* style changes
* made some design changes
* Make the Document class available when importing the library
* Add a method to parse transform strings
* Iterate on the implementation of the Document class
* Tweaks to transform parsing implementation
* Implementing a depth-first flattening of groups
* Finish implementation of flatten_paths
* Beginning to write tests for groups
* Refactoring flatten_paths() into flatten_all_paths()
* Clean up implementation of document classes
* Debugging xml namespace behavior -- needs improvement
* Improve the way the svg namespace is handled
* Print out some paths to see that they're sane
* Fix multiplication of numpy matrices -- need to use .dot() instead of operator*
* Create a unit test for parsing SVG groups
* Return a reference to an element instead of a copied dictionary of attributes
* Add a test for <path> elements that contain a 'transform' attribute
* minor docstring improvements
* got rid of svg2path changes (reverted to master)
* updated to match master
* Remove accidental paranthesis
* Remove unnecessary import
* Use a default width and height of 0, as dictated by SVG specs, in case width or height is missing
* Expose the CONVERSIONS and CONVERT_ONLY_PATHS constants
* Fix the use of some numpy operations
* Remove untested functions
* Fix add_group() and write tests for adding groups and paths
* Update documentation of document module
* Add tests for parsing transforms
* Update the module name for svg_to_paths
* Improve Python3 compatibility
* Try to improve compatibility
* More tweaks for compatibility
This commit fixes#41.
In the test case added in the previous commit, two non-intersecting lines
are very nearly collinear, but float rounding errors lead to incorrect
intersections reported.
This commit makes Line.intersect() treat denominators below 1e-9 as 0,
to make it more accepting of float rounding.
Before this commit the `t = k / steps` math is done with integers,
which always results in `t = 0`.
This commit forces the math to be done with floating-point numbers,
which results in the progression of `t` values we want.
Sebastian Kuzminsky
Andy Port
Michael X. Grey
mdejean
Orion Elenzil
Dmitry_Milk