QGIS Processing scripts, models and plugins for X3D export

Steps to try out:

1. get a DEM (for example from ned.gov, or https://github.com/andreasplesch/QGIS-X3D-Processing/raw/master/examples/output/n35w120utmWGS84_200x200nd999.tif)
2. load into qgis
3. crop and downsample to ca. 500x500 pixels, warp to longlat WGS84 (not necessary for sample DEM)
4. set additional no data value in Properties - Transparency (to 0 in above DEM)
5. get all processing scripts and models from here: https://github.com/andreasplesch/QGIS-X3D-Processing/archive/master.zip
6. load into qgis, by copying into USER/.qgis2/processing/scripts|models
7. run raster2x3dom02 model, imagery is not optional, use DEM as imagery
8. open resulting html file

• use single band pseudo color style if selected
  • support discrete and linear (interpolated) interpolation options
  • adopt color ramp and intervals from style
• add accurate picking: done
• added directional lighting: default orientation is from hillshade style azimuth and altitude, done
• multidirectional option also supported, done
• added svg knob to web page to interactively control directional light if available, with touch support
• separate out sub-model: shape from dem, done
• expose light intensity (brightness) to model, done
• headlight toggle ('x' key'), done
• control toggle ('z' key), done
• time slider to set sun position, done

• finalize DEM raster to GeoElevationGrid: better metadata from qgis, doc strings
• perhaps option to enable wrap around by repeating first column after last column, for globes
• document other scripts
• geoOrigin option: DEF/USE, needs to be first, include optionally with empty scene and update when appending ?
• use wiki for example processing workflow
• passive picking: add crosshair at center and report values from there. For mobile.
• add draping of other raster as texture: think about how to modularize
  • warp to crs of other raster script
  • crop/enlarge to extent of other raster script
  • save as jpg script (probably not useful): use rasterlayer.previewAsImage(full size), then Qimage.save: done
• color contour option: use 1d texture and generated UVs where U is normalized elevation: done
• extrude polygons from vector layer by height attribute or constant
  • need to be in projected crs, then just use first point as reference, and first point geographic coordinates for geolocation
• GeoLOD option: use gdal tile functionality for both DEM and imagery ...

use PdUp/PgDown to change perspective, drag circle to hill shade, slide to set sun position, z to toggle

small

https://rawgit.com/andreasplesch/QGIS-X3D-Processing/master/examples/output/n35w120nedWGS84_200x200tex.html https://rawgit.com/andreasplesch/QGIS-X3D-Processing/master/examples/output/n35w120_NationalAtlas/n35w120_200x200.html

large (takes a couple minutes to display):

https://rawgit.com/andreasplesch/QGIS-X3D-Processing/master/examples/output/grdn35w120_clipped_600x700dir.html

medium (topo30 resampled to 600x300, 100x v.e.)

https://rawgit.com/andreasplesch/QGIS-X3D-Processing/master/examples/output/topo30_600x300tex.html

map draping (texture mapping)

color contours (Pseudo Color Single Band Style)

using cobweb with pure X3D