Geografic-Information-System/doc/README

Graphical index images
======================

General
-------

Clipped part from grass_structure.png with Locations, Mapsets and data
types.

Alternative (can be also alternative for display):

g.region n=224940 s=224590 w=638450 e=638840

d.shade shade=elevation_shade color=elevation  # opacity 90%
d.vect map=firestations color=45:107:168 fill_color=30:144:255 width=2 icon=basic/circle size=15
d.vect map=schools color=208:208:0 fill_color=yellow width=2 icon=basic/triangle size=15
d.vect map=hospitals color=136:0:0 fill_color=213:21:21 width=2 icon=basic/box size=15


Raster
------

d.rast.num -a -f map=elevation grid_color=179:179:179 precision=0


Vector
------

g.region n=224940 s=224590 w=638450 e=638840

v.buffer input="streams" layer="-1" output="streams_buffer" distance=20

d.vect map=census color=142:142:0 fill_color=255:255:167 width=2
d.vect map=streams_buffer color=11:185:11 fill_color=11:185:11 width=1
d.vect map=streams color=30:144:255 width=4


Database
--------

streams attributes screenshot

DIR="../trunk-commands/doc/"
for FILE in *.png; do convert $FILE -resize 200x200 $DIR/`basename -s .png $FILE`.jpg; done;


Display
-------

g.region n=226640 s=222860 w=631260 e=637170

d.rast map=elevation_shade
d.rast map=lakes
d.vect map=schools color=16:70:123 fill_color=30:144:255 width=1 icon=basic/triangle size=10
d.vect map=roadsmajor color=255:151:38 width=4
d.vect map=roadsmajor color=255:172:82 width=2

GUI
---

* Ubuntu 14.04 with Unity
* landclass, roadsmajor, elevation
* query map dialog active
* Search modules tab active (with open subtrees)


Imagery
-------

# this takes some time, perhaps the region below would be enough
g.region -p raster=ortho_2001_t792_1m
i.group group=ortho_group input=ortho_2001_t792_1m
i.segment group=ortho_group output=ortho_segs_final threshold=0.25 min=10

g.region n=221100 s=219700 w=638616 e=639316 -p
d.mon start=cairo output=gi_imagery.png width=500 height=500
d.frame left -c at=0,100,0,50d.rast ortho_2001_t792_1m
d.rast ortho_2001_t792_1m
d.frame right -c at=0,100,50,100
d.rast ortho_segs_final
d.mon stop=cairo


Temporal
--------

Done in GUI.

g.region raster=landuse

r.mapcalc "a1 = 10"
r.mapcalc "a2 = 20"
r.mapcalc "a3 = 30"
r.mapcalc "a4 = 40"

m.nviz.image elevation_map=a1,a2,a3,a4 mode=fine,fine,fine,fine resolution_fine=1,6,1,1 resolution_coarse=9,9,9,9 shading=gouraud,gouraud,gouraud,gouraud style=surface,surface,surface,surface wire_color=136:136:136,136:136:136,136:136:136,136:136:136 color_map=landuse,landuse,landuse,landuse \
position=0.03,0.31 height=92 perspective=36 twist=-99 zexag=200.000000 focus=1071,9393,30 \
light_position=-0.57,0.75,0.80 light_brightness=80 light_ambient=20 light_color=255:255:255 \
output=nviz_output format=ppm size=872,586  


Miscellaneous
-------------

Taken from d.rhumbline.