[GRASS-user] 3D raster color coding
Veronica Andreo
veroandreo at gmail.com
Sat Jun 2 11:01:28 PDT 2018
g.region manual page:
https://grass.osgeo.org/grass74/manuals/g.region.html
# print current region info
g.region -p
# set to a raster 3d
g.region raster_3d=nameofyourmap
El sáb., 2 jun. 2018 19:58, Francois Chartier <fra.chartier at gmail.com>
escribió:
> how do you ensure that region is selected to the extent of the raster. I
> think I already did this when making v.vol.rst.
>
> Le sam. 2 juin 2018 à 13:56, Veronica Andreo <veroandreo at gmail.com> a
> écrit :
>
>> What about the region? Is it set to the extent of your raster?
>>
>> El sáb., 2 jun. 2018 19:52, Francois Chartier <fra.chartier at gmail.com>
>> escribió:
>>
>>> i removed the 'r' and used elevation and bcyr as the color tables, see
>>> below. Display window is blank.
>>>
>>> to recap the steps:
>>> 1 - i selected the Mapset and also tried Map that corresponds to the 3d
>>> raster
>>> 2 - then in Define tab, i only choose the Name of Color Table: bcyr, i
>>> have not selected anything else,
>>> 3 - then i just Run.
>>>
>>> (Sat Jun 02 13:45:02 2018)
>>>
>>> r3.colors map=BHALL_May24v2 at Toronto color=elevation
>>>
>>> Color table for raster3d map <BHALL_May24v2 at Toronto> set to 'elevation'
>>> (Sat Jun 02 13:45:02 2018) Command finished (0 sec)
>>>
>>> (Sat Jun 02 13:46:14 2018)
>>>
>>> r3.colors map=BHALL_May24v2 at Toronto color=bcyr
>>>
>>> Color table for raster3d map <BHALL_May24v2 at Toronto> set to 'bcyr'
>>> (Sat Jun 02 13:46:15 2018) Command finished (0 sec)
>>>
>>>
>>>
>>>
>>>
>>> Le sam. 2 juin 2018 à 09:01, Francois Chartier <fra.chartier at gmail.com>
>>> a écrit :
>>>
>>>> Is there any way to set the range for the color table?
>>>>
>>>> On Sat, Jun 2, 2018, 02:33 Veronica Andreo, <veroandreo at gmail.com>
>>>> wrote:
>>>>
>>>>> Try removing -r from your command (unchecking the box in the GUI).
>>>>>
>>>>> That flag is used to remove a color palette.
>>>>>
>>>>> Best,
>>>>> Vero
>>>>>
>>>>> El sáb., 2 jun. 2018 3:48, Francois Chartier <fra.chartier at gmail.com>
>>>>> escribió:
>>>>>
>>>>>>
>>>>>> Hi Veronica,
>>>>>>
>>>>>> something is odd. here are the steps - Display window is still blank
>>>>>> and the 3D raster has data ranging from -8 to 34.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> Step 2 - set as viridis - according to manual this
>>>>>>
>>>>>>
>>>>>> *result in command window*
>>>>>> (Fri Jun 01 21:44:05 2018)
>>>>>>
>>>>>> r3.colors -r map=BHALL_May24v2 at Toronto color=viridis
>>>>>>
>>>>>> (Fri Jun 01 21:44:05 2018) Command finished (0 sec)
>>>>>>
>>>>>> *Display is still blank. *
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> *Data is there*
>>>>>>
>>>>>> |
>>>>>> | Type of Map: raster_3d Number of Categories: 0
>>>>>> |
>>>>>> | Data Type: FCELL
>>>>>> |
>>>>>> | Rows: 90
>>>>>> |
>>>>>> | Columns: 85
>>>>>> |
>>>>>> | Depths: 307
>>>>>> |
>>>>>> | Total Cells: 2348550
>>>>>> |
>>>>>> | Total size: 3180868 Bytes
>>>>>> |
>>>>>> | Number of tiles: 336
>>>>>> |
>>>>>> | Mean tile size: 9466 Bytes
>>>>>> |
>>>>>> | Tile size in memory: 30420 Bytes
>>>>>> |
>>>>>> | Number of tiles in x, y and z: 6, 7, 8
>>>>>> |
>>>>>> | Dimension of a tile in x, y, z: 15, 13, 39
>>>>>> |
>>>>>> |
>>>>>> |
>>>>>> | Projection: UTM (zone 17)
>>>>>> |
>>>>>> | N: 4870795 S: 4825715 Res: 500.88888889
>>>>>> |
>>>>>> | E: 651669 W: 609204 Res: 499.58823529
>>>>>> |
>>>>>> | T: 352 B: 45 Res: 1
>>>>>> |
>>>>>> | Range of data: min = -8.99099445 max = 33.89262009
>>>>>> |
>>>>>> |
>>>>>> |
>>>>>> | Data Source:
>>>>>> |
>>>>>> |
>>>>>> |
>>>>>> |
>>>>>> |
>>>>>> |
>>>>>> |
>>>>>> | Data Description:
>>>>>> |
>>>>>> | generated by v.vol.rst
>>>>>> |
>>>>>> |
>>>>>> |
>>>>>> | Comments:
>>>>>> |
>>>>>> | v.vol.rst input="BHMat1All_May12 at Toronto" wcolumn="cat"
>>>>>> tension=40. \ |
>>>>>> | smooth=0.1 segmax=50 npmin=200 npmax=700 dmin=2 wscale=1.0
>>>>>> zscale=1.\ |
>>>>>> | 0 elevation="BHALL_May24v2"
>>>>>>
>>>>>>
>>>>>> Le ven. 1 juin 2018 à 12:54, Francois Chartier <
>>>>>> fra.chartier at gmail.com> a écrit :
>>>>>>
>>>>>>> Thanks, I'll check it out.
>>>>>>>
>>>>>>> On Fri, Jun 1, 2018, 03:05 Veronica Andreo, <veroandreo at gmail.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Hello,
>>>>>>>>
>>>>>>>> That's probably because that palette is for integer values ranging
>>>>>>>> from 0 to 360 [0]. Try with a relative one such as viridis or bcyr.
>>>>>>>>
>>>>>>>> HTH,
>>>>>>>> Vero
>>>>>>>>
>>>>>>>> [0] https://grass.osgeo.org/grass74/manuals/r.colors.html
>>>>>>>>
>>>>>>>> El jue., 31 may. 2018 a las 3:18, Francois Chartier (<
>>>>>>>> fra.chartier at gmail.com>) escribió:
>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> I have created a 3D raster from soil properties with about 70K
>>>>>>>>> points, with a* lot of help from the mailing list i must say*.
>>>>>>>>> from the copy of the metadata of the 3d raster (below) it would
>>>>>>>>> confirm that the 3D raster worked and the grid is populated with data.
>>>>>>>>> I have copied below the r3.colors and assigned 'aspectcolr' as a
>>>>>>>>> trial. Unfortunately in the Display window nothing shows up, whether in 2D
>>>>>>>>> or in 3D view. I do not know what i am doing incorrectly.
>>>>>>>>>
>>>>>>>>> Once I am done and able to develop the 3D raster of the soil
>>>>>>>>> properties, I will prepare a simple step by step for developing such a
>>>>>>>>> raster which may be useful for others.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> +----------------------------------------------------------------------------+
>>>>>>>>> | Layer: BHALL_May24v2 at Toronto Date: Sun May 27
>>>>>>>>> 16:43:46 2018 |
>>>>>>>>> | Mapset: Toronto Login of Creator:
>>>>>>>>> Francois Charti |
>>>>>>>>> | Location: Toronto
>>>>>>>>> |
>>>>>>>>> | DataBase: C:\Users\Francois Chartier\Documents\grassdata
>>>>>>>>> |
>>>>>>>>> | Title: BHALL_May24v2
>>>>>>>>> |
>>>>>>>>> | Units: none
>>>>>>>>> |
>>>>>>>>> | Vertical unit: units
>>>>>>>>> |
>>>>>>>>> | Timestamp: none
>>>>>>>>> |
>>>>>>>>>
>>>>>>>>> |----------------------------------------------------------------------------|
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>> | Type of Map: raster_3d Number of Categories: 0
>>>>>>>>> |
>>>>>>>>> | Data Type: FCELL
>>>>>>>>> |
>>>>>>>>> | Rows: 90
>>>>>>>>> |
>>>>>>>>> | Columns: 85
>>>>>>>>> |
>>>>>>>>> | Depths: 307
>>>>>>>>> |
>>>>>>>>> | Total Cells: 2348550
>>>>>>>>> |
>>>>>>>>> | Total size: 3180868 Bytes
>>>>>>>>> |
>>>>>>>>> | Number of tiles: 336
>>>>>>>>> |
>>>>>>>>> | Mean tile size: 9466 Bytes
>>>>>>>>> |
>>>>>>>>> | Tile size in memory: 30420 Bytes
>>>>>>>>> |
>>>>>>>>> | Number of tiles in x, y and z: 6, 7, 8
>>>>>>>>> |
>>>>>>>>> | Dimension of a tile in x, y, z: 15, 13, 39
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>> | Projection: UTM (zone 17)
>>>>>>>>> |
>>>>>>>>> | N: 4870795 S: 4825715 Res: 500.88888889
>>>>>>>>> |
>>>>>>>>> | E: 651669 W: 609204 Res: 499.58823529
>>>>>>>>> |
>>>>>>>>> | T: 352 B: 45 Res: 1
>>>>>>>>> |
>>>>>>>>> | Range of data: min = -8.99099445 max = 33.89262009
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>> | Data Source:
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>> | Data Description:
>>>>>>>>> |
>>>>>>>>> | generated by v.vol.rst
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>> | Comments:
>>>>>>>>> |
>>>>>>>>> | v.vol.rst input="BHMat1All_May12 at Toronto" wcolumn="cat"
>>>>>>>>> tension=40. \ |
>>>>>>>>> | smooth=0.1 segmax=50 npmin=200 npmax=700 dmin=2 wscale=1.0
>>>>>>>>> zscale=1.\ |
>>>>>>>>> | 0 elevation="BHALL_May24v2"
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>> |
>>>>>>>>>
>>>>>>>>> +----------------------------------------------------------------------------+
>>>>>>>>> (Wed May 30 21:11:59 2018) Command finished (0 sec)
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> ----------------------------------------------------------------------------------------
>>>>>>>>>
>>>>>>>>> (Wed May 30 21:10:02 2018)
>>>>>>>>>
>>>>>>>>> r3.colors map=BHALL_May24v2 at Toronto color=aspectcolr
>>>>>>>>>
>>>>>>>>> Color table for raster3d map <BHALL_May24v2 at Toronto> set to
>>>>>>>>> 'aspectcolr'
>>>>>>>>> (Wed May 30 21:10:03 2018) Command finished (0 sec)
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> grass-user mailing list
>>>>>>>>> grass-user at lists.osgeo.org
>>>>>>>>> https://lists.osgeo.org/mailman/listinfo/grass-user
>>>>>>>>
>>>>>>>>
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