包详细信息

leaflet.tilelayer.gloperations

equinor116BSD-3-Clause0.4.2

Custom Leaflet TileLayer using WebGL to do operations on and colorize floating-point pixels.

Custom Leaflet TileLayer using WebGL to do operations on and colorize floating-point pixels

GPU rendering
A simple declarative API
A small configuration language for describing how to colorize pixels
- Interpolated color scale
- Sentinel values with optional labels
Raw float pixel value(s) provided to mouse event handlers
Hillshading
Contours
Animated per-pixel transitions when changing URL and/or colormaps
Load multiple tile layers, do operations on them and return result layer:
- Difference between two tile layers
- Analysis of multiple tile layers (supports 1-6 layers currently). Filter values and use a multiplier for each layer.
- Return pixel values for both input and result layers

Added optional smoothing of input data for advanced hillshading:
- hsAdvSmoothInput (default: false)
- hsAdvSmoothInputKernel (default: 3)

Added advanced hillshading option. See Wiki for available options.
Support for loading DEM tile format
Can specify color as hex values (#FF0000) in addition to existing rgb format (rgb(255,0,0)).

Send colormaps as textures to webgl. Reduces the number of fragment uniforms used.

Plugin now works on mobile devices. Advanced hillshading does not yet work on iOS devices, but works fine on Android.

New options to specify max length of color scale and sentinels:
- colorscaleMaxLength (default: 16)
- sentinelMaxLength (default: 16)
New option required when using contours: contourPane specifies Leaflet pane containing the contour canvas. Necessary addition to fix positioning of canvas when using fractional zoom.

Option to smooth contour input data
- Set contourSmoothInput to enable
- Set the convolution kernel size with contourSmoothInputKernel