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Author SHA1 Message Date
Olivier Guyot 80b4473180 Simplify the heatmap example 
Use a weight function instead of manually edditing the features.
 2019-10-28 10:27:29 +01:00
Olivier Guyot cd3b222467 Specify an actual extent when loading features in the Webgl points renderer 
This means any specified loading strategy will be taken into account.

Also added some tests to make sure the interaction with the source is
correct.
 2019-10-28 10:26:31 +01:00
Olivier Guyot e63bb45e6f Webgl points layer / allow disabling hit detection 
Having hit detection enabled has an overhead as it means
continously generating additional render instructions and rendering
to an offscreen canvas
 2019-10-25 15:11:37 +02:00
Olivier Guyot 4462608991 Expressions / adds color and array conversion operators 
Also fixes existing error throwingtests which were essentially doing nothing.
 2019-10-25 14:55:44 +02:00
Olivier Guyot ff3cc9b4d0 Expressions / renamed operator pow to ^ 
To be more in line with Mapbox style spec
 2019-10-25 14:55:44 +02:00
Olivier Guyot a844691d7b Added new example styles in the webgl points layer example 2019-10-25 14:55:44 +02:00
Olivier Guyot acf973751b Webgl / added time and resolution as default uniforms 
Also added the `zoom` and `resolution` style operators
 2019-10-25 14:55:44 +02:00
Olivier Guyot e843b2cfc0 Expressions / adaptation and cleanup after stretch operator removal 
The examples have been fixed as well.
 2019-10-25 14:55:44 +02:00
Olivier Guyot 719495587c Expressions / rework the interpolate operator 
This operator is now able to map numbers to output ranges as well as colors,
making the stretch operator unnecessary. Also allows giving multiple stops,
like in Mapbox style spec.
 2019-10-25 14:55:44 +02:00
Olivier Guyot 9e010631c1 Expressions / refactor operators to avoid linting errors 
Previously the utilities used the Operators dict before its definition.
 2019-10-25 14:55:44 +02:00
Olivier Guyot a64f2eb720 Update the icon-sprite-webgl example to use a WebGLPoints layer 2019-10-25 14:55:44 +02:00
Olivier Guyot d643951a74 Shader Builder / add option to generate hit detection shaders 2019-10-25 14:55:44 +02:00
Olivier Guyot a39f751981 Shader Builder / adapt logic & test to the new expression types 
Also fixes a sneaky bug where the two last texture coordinates were inverted.
 2019-10-25 14:55:44 +02:00
Olivier Guyot fc98704bcb Expressions / adds a test for a complex combination of operators 2019-10-25 14:55:44 +02:00
Olivier Guyot 27c530ec64 Expressions / introduce the match operator 
This operator allows mapping from input values to output values of different
kinds and handles variable arguments count.
 2019-10-25 14:55:44 +02:00
Olivier Guyot e3f7d29bb2 Expressions / add utilities for using strings in GLSL & more type checking 
It is now possible to specify a type hint when parsing an expression, which
helps determine the output value type.

When no single output type can be inferred, an error is thrown.

For strings, every literal value will be replaced by a number and a map of
these associations will be kept in the parsing context, which is passed
recursively.
 2019-10-25 14:55:44 +02:00
Olivier Guyot 44347a9ed3 Adapt the icon-sprite-webgl example to the new expressions module 2019-10-25 14:55:44 +02:00
Olivier Guyot 31dae929f5 ShaderBuilder / adapt logic & tests to new expressions module 2019-10-25 14:55:44 +02:00
Olivier Guyot 5712792772 Expressions / add more tests for conversion to GLSL 2019-10-25 14:55:44 +02:00
Olivier Guyot bcf7649b9a Expressions / store the variables & attributes in the context 2019-10-25 14:55:44 +02:00
Olivier Guyot 7e4119d580 Expressions / restored the parsing logic with better type checking 
Converting expressions to GLSL is now done in ol/style/expressions, with the
same logic as before in ol/webgl/ShaderBuilder.
 2019-10-25 14:55:44 +02:00
Olivier Guyot 72903d6454 Expressions / added operator declarations & type checking logic 2019-10-25 14:55:44 +02:00
Olivier Guyot 35af80b433 Style / add an ol/style/expressions module 
This module will contain the utilities and operator declarations
for literal style expressions, boh for type checking and parsing
 2019-10-25 14:55:44 +02:00
Olivier Guyot fc555241ea ShaderBuilder / simplify check/parse code a bit 2019-10-23 09:22:12 +02:00
Olivier Guyot 1fe5a68e16 Fix the triangles style in the wbegl-points-layer example 2019-10-22 23:27:26 +02:00
Olivier Guyot 948003ff27 Rewrite to filter-points-webgl example to use a Webgl points layer 
The demonstrated features have been recreated using a literal
style (filtering, pulse animation).
 2019-10-22 23:17:00 +02:00
Olivier Guyot d837166a1b Literal Style / add new math operators 2019-10-22 23:17:00 +02:00
Olivier Guyot c659c05de8 ShaderBuilder / fix stretch operator GLSL expression 2019-10-22 23:17:00 +02:00
Olivier Guyot 485ade42b5 Literal Style / add support for color interpolation 2019-10-22 23:17:00 +02:00
Olivier Guyot 85c3aae454 ShaderBuilder / add support for color interpolation in parse 2019-10-22 23:17:00 +02:00
Olivier Guyot a29fc016f5 ShaderBuilder / formatColor/Array utilities now output vecX(...) 2019-10-22 23:17:00 +02:00
Olivier Guyot 19eadaea24 Shader Builder / add type checking in expressions parsing 
All expressions will now be type checked before actually being parsed.
 2019-10-22 23:17:00 +02:00
Olivier Guyot b8e8d30df0 Shader Builder / add utilities for checking an expression type 
Type checking is done either against a literal value (number, string...)
or against the operator in case of an expression.

Sometimes it is not possible to infer only one type, for example
the value 'transparent' could either be a color or a string. This
is covered by the fact that all operators expect exactly one type
for their arguments.
 2019-10-22 23:17:00 +02:00
Olivier Guyot f43637cc33 Shader Builder / support strings in formatColor 2019-10-22 23:17:00 +02:00
Olivier Guyot 56faf4c3ad Color / add an isStringColor utility function 2019-10-22 23:17:30 +02:00
Olivier Guyot a0b271a812 Literal Style / add support for variables in the style 
These variables are accessed using the `var` operator, and are meant
to be mutated directly in the style object. When doing so,
the new value will always be used for the render.

This is intended to be used for modifying the style through external
parameters such as an input field, a slider, mouse position etc.
 2019-10-22 23:17:00 +02:00
Olivier Guyot a1c00744d1 Webgl points renderer / throw if shader compilation fails 
This should only happen if providing handcrafted shaders to the renderer.
 2019-10-22 23:17:00 +02:00
Olivier Guyot 94b8cf6af3 Webgl / add support for a time operator in literal styles 
This required adding `u_time` as one of the default uniforms provided by the
webgl helper.
 2019-10-22 23:17:23 +02:00
Olivier Guyot 0c0c8c5d56 Literal Style / add support for a filter property 2019-10-22 23:17:00 +02:00
Olivier Guyot e38250ee14 ShaderBuilder / add fragment discard expression in shader params 2019-10-22 11:39:30 +02:00
Olivier Guyot 7b66b294a8 ShaderBuilder / attempt to clarify the way attributes are handled in parseSymbolStyle 2019-10-22 11:18:39 +02:00
Olivier Guyot 9ee93cd2cf ShaderBuilder / refactoring to use an actual builder pattern 
There is now a ShaderBuilder class with chainable methods
to specify more easily the contents of the final shaders.
This is to avoid passing around large objects to different functions,
and allow for a richer API.

The documentation has also been corrected and clarified.
 2019-10-22 11:12:06 +02:00
Olivier Guyot 87414256e2 Heatmap / use worker events instead of timeout for test 2019-10-11 14:06:27 +02:00
Olivier Guyot b44a6ab26a Heatmap / add hit detection shaders 2019-10-08 13:27:31 +02:00
Olivier Guyot 13147e0b82 Add experimental tags to a few examples & added doc in the README 
Plus some typos.
 2019-09-26 20:19:23 +02:00
Olivier Guyot 09134a6091 Shader builder / typecheck fix for parse fn 2019-09-26 16:30:19 +02:00
Olivier Guyot 858f0fc0cc Update the webgl-points-layer example to reflect new possibilities 2019-09-26 16:30:19 +02:00
Olivier Guyot 28d157af56 Shader builder / add circle and triangle shapes for symbols 2019-09-26 16:30:19 +02:00
Olivier Guyot 9b3a9b5eca Shader builder / add logic for transforming a style into shader params 
This was previously handled by the WebGLPointsLayer class, but is now
externalized and tested.
 2019-09-26 16:20:35 +02:00
Olivier Guyot d5caabbbfc Shader builder / add basic expression parsing 
Only a handful of expressions for now, very loosely based on the
mapbox style spec. Also only work on numerical values.
 2019-09-26 16:20:35 +02:00
Olivier Guyot 02e5e1776c Hit detection / fix test for wrapped geometries hit detection 
Also restores the whole unit test suite.
 2019-09-26 15:59:14 +02:00
Olivier Guyot b89c1255f7 Canvas vector / Avoid modifying the coordinates array in place 2019-09-26 15:34:31 +02:00
Olivier Guyot 7e4383f554 Webgl renderer / now accepts any kind of layer (not just vector) 2019-09-26 15:33:54 +02:00
Olivier Guyot 7da3b60061 Webgl Layer / rename literalStyle property to style 2019-09-26 14:44:32 +02:00
Olivier Guyot 0732f17fd3 Webgl layer / remove @api tag & better doc 
Also the webgl layer now only inherits from the Layer class,
not the VectorLayer one.
 2019-09-26 14:42:04 +02:00
Olivier Guyot 9e9aa66f5f Webgl points renderer / restore check for hit detection readiness 2019-09-25 17:22:36 +02:00
Olivier Guyot 34572da17b Webgl shader builder / expanded functionality 
Now takes in a custom object with attributes, uniforms etc.
The WebGLPointsLayer uses this to handle image icons.
 2019-09-25 17:22:36 +02:00
Olivier Guyot b8564d503a Webgl icon example / restore texture for icons 2019-09-25 17:22:36 +02:00
Olivier Guyot 9e55a8b2f0 Webgl / linting & test fixes 2019-09-25 17:22:36 +02:00
Olivier Guyot 610a846149 Webgl points renderer / make the hit detection optional 2019-09-25 17:22:36 +02:00
Olivier Guyot 23c2999cab Webgl points renderer / fix hit detection 
Due to the fact that the points renderer does not know for sure
which attributes will be used for rendering, it is now mandatory
to provide both vertex/fragment shaders for rendering AND hit
detection.

The hit detection shaders should expect having an `a_hitColor`
that they should return to allow matching the feature uid.

This will be all one eventually by shader builders under the hood.
 2019-09-25 12:11:09 +02:00
Olivier Guyot 109f9718f9 Webgl renderer / fix existing examples 
The shaders were rewritten manually for those, althoughj eventually they
should use the shader builder utilities as well.
 2019-09-25 11:09:07 +02:00
Olivier Guyot 2b36445ecc Webgl / Adapt the points renderer to use custom attributes 
Now most attributes will be custom ones defined by the user of the renderer.
The hit detection is broken for now and still has to be fixed.
Also it is not possible anymore to give a texture to the renderer,
this will have to be fixed as well.
 2019-09-25 10:11:27 +02:00
Olivier Guyot 076b674d6f Webgl helper / easier utility for binding attributes 
also a bit of improvement on the doc
 2019-09-24 19:10:07 +02:00
Olivier Guyot 30f19f8317 Webgl points renderer / terminates worker & dispose helper 2019-09-24 17:59:21 +02:00
Olivier Guyot cb2c596a6d Add an example for the WebGLPointsLayer with editable style 2019-09-24 17:59:21 +02:00
Olivier Guyot 4d7562fca2 Add a new WebGLPointsLayer type using the shader builder utilities 
This required adding a `a_index` attribute in the points layer renderer
to be able to make the precomputed shaders to work.
 2019-09-24 17:24:56 +02:00
Olivier Guyot a6b8d920b7 Webgl / add a fixed fragment shader builder for symbols 2019-09-24 15:49:07 +02:00
Olivier Guyot 4de0c0b082 Webgl / add a very simple vertex shader builder utility 
This only allows including hardcoded values in the shader,
and only for symbols.
 2019-09-24 15:43:26 +02:00
Olivier Guyot 167fa6b8a0 Add property to all layers api doc 2019-09-24 10:58:55 +02:00
Olivier Guyot 449686527b Document how to avoid canvas reuse for layers 
This restores the `map.forEachLayerAtPixel` functionality.

This is intended to help with openlayers#9720
 2019-09-24 09:46:32 +02:00
Olivier Guyot cae8c333f2 Enable https on tile layer in webgl sprite example 2019-09-23 17:51:32 +02:00
Olivier Guyot 5b5a3657f0 Fix typings in workers 
The worker self object is simply cast to any to make sure typescript
does not complain.
Actual typecheck may be restored once the following issue is fixed:
https://github.com/microsoft/TypeScript/issues/20595
 2019-09-23 15:37:48 +02:00
Olivier Guyot 05a0600fe5 Webgl icon example / render map when texture ready 2019-08-31 08:59:34 +02:00
Olivier Guyot 732b383b53 Webgl points / re-render when buffers have been built offthread 2019-08-31 08:41:04 +02:00
Olivier Guyot 29d07ada54 Webgl helper / skip binding texture if underlying image is not ready 2019-08-30 11:02:31 +02:00
Olivier Guyot 5c1191dd5c Webgl points / skip hit detection render when out of sync 
This happens when the indices buffer has been generated by the
worker but not the hit detection vertices buffer.
 2019-08-30 10:38:41 +02:00
Olivier Guyot c48350b666 Webgl buffer / add utility getSize function 
Saves checking whether the buffer was initialized with
an array already
 2019-08-30 10:38:02 +02:00
Olivier Guyot e57e660819 Webgl points / use default vertex shader for hit detection 
Otherwise we were getting errors if the custom
vertex shader was missing varyings expected by
HIT_FRAGMENT_SHADER.
 2019-08-30 10:16:55 +02:00
Olivier Guyot 2f3e8d04f1 Webgl points / fix hit detection for retina devices 2019-07-11 00:05:55 +02:00
Olivier Guyot 28b99767f8 Webgl points / read only one pixel for feature hit detection 
Also implements `hasFeatureAtCoordinate`.

`hitTolerance` is not supported for now.
 2019-06-28 09:12:20 +02:00
Olivier Guyot e852294938 Webgl / improve reading of render targets data 
Now two methods are available: `readAll` and `readPixel`,
and the data from the render target is not re-read every time unless
`clearCachedData` is called.
 2019-06-28 09:12:20 +02:00
Olivier Guyot 917950a32b Improve icon-sprite-webgl example to include hit detection 2019-06-28 09:12:20 +02:00
Olivier Guyot 5ffca0633c Webgl Points / Add support for feature hit detection 
For now only `forEachFeatureAtCoordinate` is implemented.

Each time the viewport is rendered, another similar render pass is
done using the specific hit detection instructions. Feature uid's are
encoded in the r,g,b,a channels and can then be decoded on the fly.

Note: the `readPixels` operation is taking a lot of time,
around 10-20ms each frame.
 2019-06-28 09:12:20 +02:00
Olivier Guyot 38920867fb Webgl Helper / Add a method to prepare drawing to render targets 2019-06-28 09:12:20 +02:00
Olivier Guyot 6224d749c4 WebGL / Introduced the WebGLRenderTarget class 
This utility class simplifies rendering to a texture & reading the
results of the render.

It also allows clearing its content before a new render.
 2019-06-28 09:12:20 +02:00
Olivier Guyot 1257ade199 Webgl renderer / rename function to avoid confusion 
`getBlankTexture` was too close to `WebGLHelper#createTexture`
 2019-06-28 09:12:20 +02:00
Olivier Guyot f25a16d90c Webgl helper / rework create texture utils 
Now only one util is available: `createTexture`, which
is tested and allows binding an image and reusing an existing texture.
 2019-06-28 09:12:20 +02:00
Olivier Guyot b6425187de Remove unused WebGLShader class 2019-06-28 09:06:16 +02:00
Olivier Guyot 2b5e5459ab Webgl points / add hit detection buffers generation 
Hit detection is done by rendering features with their id encoded in the
color attribute. A parallel set of render instructions and a second
vertex buffer is used specifically for that.
 2019-06-28 09:06:16 +02:00
Olivier Guyot 8145b358c0 Webgl renderer / add id encode/decode utils 2019-06-28 09:06:16 +02:00
Olivier Guyot 034e0be76f Vector Source / index all features by uid 
Previously features were indexed by uid only when they
did not have a defined id.
A new method was added: `getFeatureByUid`. This is not part of
the public API.
This will facilitate the lookup of features for hit detection.
 2019-06-28 09:06:16 +02:00
Olivier Guyot 2412fe0211 Webgl / remove handling of element_index_uint extension 
From now on we will assume this extension is always enabled.

An error message have been added in the unlikely scenario of a lack
of support.
 2019-06-05 14:46:15 +02:00
Olivier Guyot 98b0c65450 Rendering tests / add custom web worker loader 
Also includes a change in the rollup-babel plugin to avoid
adding helpers as dependencies (which would give out errors).
 2019-06-01 15:33:36 +02:00
Olivier Guyot 698816030e Webgl points / fix unit tests 2019-06-01 15:33:36 +02:00
Olivier Guyot 03e70bd10e Webgl points / handle using short instead of int for indices 
This is controlled by the availability of the OES_element_index_uint
webgl extension.
 2019-06-01 15:33:36 +02:00
Olivier Guyot e0983cb1c6 Webgl worker / add tests, some typing and documentation 
The worker currently works by receiving GENERATE_BUFFERS messages and
will send back the same kind of message, with the generated buffers
attached. All properties of the original message are kept, so that
when a GENERATE_BUFFERS message comes back to the main thread it
is possible to know what and how the buffers where generated.

This is typically used for the `projectionTransform` matrix, and
will also be necessary when working with tiles.
 2019-06-01 15:33:36 +02:00
Olivier Guyot a366803cdd Webgl / use the new buffer API in helper & the points renderer 2019-06-01 15:33:36 +02:00
Olivier Guyot 33d007ce01 Webgl buffer / now stores data in typed arrays 
The `WebGLBuffer` class API was changed in order to allow populating
the internal array in different ways.
 2019-06-01 15:33:31 +02:00
Olivier Guyot 8566cfc227 Webgl points / get back the instructions array from the worker 
This means we won't have to recreate a binary buffer (through a typed array)
on every `rebuildBuffer` call.
 2019-06-01 15:25:24 +02:00