mirror of
https://github.com/OpenSpace/OpenSpace.git
synced 2026-04-29 15:29:26 -05:00
Emma Broman
2323a8ce50
* Allow changing color map during runtime * Stary building asset with colormaps (currently using local files) * Add option to invert the color maps * Remove final use of local viridis file in example and fix broken cmap update * Use synced resource for colormap files * Update advanced colormapping example * Apply suggestions from code review Co-authored-by: Alexander Bock <alexander.bock@liu.se> * Update data/assets/util/default_colormaps.asset * Capitalize first letter of exported keys, to be more consistent with rest of code base --------- Co-authored-by: Alexander Bock <alexander.bock@liu.se>
70 lines
2.2 KiB
Lua
70 lines
2.2 KiB
Lua
local earthAsset = asset.require("scene/solarsystem/planets/earth/earth")
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local colormaps = asset.require("util/default_colormaps")
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local Example = {
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Identifier = "ExamplePoints_DataMapping",
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Parent = earthAsset.Earth.Identifier,
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Renderable = {
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Type = "RenderablePointCloud",
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File = asset.resource("data/dummydata.csv"),
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DataMapping = {
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-- Using the DataMapping, we can specify the X, Y and Z values of the point
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-- positions to be set by any value in the dataset, without changing the dataset
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-- used for the rendering
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X = "a",
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Y = "b",
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Z = "a",
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-- It is also possible to specify a numeric value that corresponds to missing
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-- values in the dataset. These will be interpreted as NaN values
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MissingDataValue = 29,
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-- And some column that we do not want to include in the loading. Here we can for
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-- example skip the regular position columns
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ExcludeColumns = { "x", "y", "z" }
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},
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-- Interpret values as Parsec rather than meter. The values in the a and b columns
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-- are much smaller than the x, y and z
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Unit = "pc",
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-- To show the values corresponding to missing values, use a color map and show
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-- missing data values in a specific color
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Coloring = {
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ColorMapping = {
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File = colormaps.Uniform.Magma,
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ShowMissingData = true,
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NoDataColor = { 1.0, 0.0, 0.0, 1.0 }
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}
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},
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},
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GUI = {
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Name = "Data Mapping",
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Path = "/Example/Point Clouds",
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Description = [[Example of a point cloud where the X, Y and Z position are mapped to
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other columns in the dataset.]]
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}
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}
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asset.onInitialize(function()
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openspace.addSceneGraphNode(Example)
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end)
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asset.onDeinitialize(function()
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openspace.removeSceneGraphNode(Example)
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end)
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asset.export(Example)
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asset.meta = {
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Name = "Example - Point Cloud with Custom Data Mapping",
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Version = "1.0",
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Description = [[Example of a point cloud where the X, Y and Z position are mapped to
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other columns in the dataset. The data mapping also includes some settings for
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missing data values and columns to exclude when loading the dataset]],
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Author = "OpenSpace Team",
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URL = "http://openspaceproject.com",
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License = "MIT license"
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}
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