QGIS-X3D-Processing

QGIS Processing scripts, models and plugins for X3D export

Summary

Steps to try out:

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