- Therion - speleo.sk

Google Earth terrain model
by Dave Clucas 13 Jul '09

13 Jul '09

Have you tried Terraintool? quote I've recently developed an application to create terrain data for Survex from the results of the Shuttle Radar Topography Mission (SRTM). Coverage is >99% of the land mass between 60 degrees North and 56 degrees South - with the missing bits mostly being in mountaneous areas where steep faces were shadowed from the oblique radar by surrounding peaks. The tool lets you select a rectangular area in a variety of coordinate systems (OSGB, Irish Grid, UTM, Lambert Coordinates, Austrian grid...) and saves the result as a .svx Survex data file. It's written in Java and should run OK on Windows, Linux, Solaris etc. If anyone's interested in playing with it you can download it fromhttp://uk.geocities.com/mikemccombe@btinternet.com/terraintool.htm You'll also find some installation instructions and driving instructions. Best regards, Mike unquote -- Survex http://lists.survex.com/mailman/listinfo/survex On 12 Jul 2009, at 11:00, therion-request(a)speleo.sk wrote: > Message: 2 > Date: Sun, 12 Jul 2009 20:09:40 +1200 > From: "Bruce Mutton" <bruce.mutton(a)paradise.net.nz> > Subject: Re: [Therion] Google Earth terrain model > To: "'List for Therion users'" <therion(a)speleo.sk> > Message-ID: <1F4C18599AC54E418B97157105730B60@JUICEBRAIN> > Content-Type: text/plain; charset="us-ascii" > > Thomas > As far as I can tell there is no Windows interpreter that will run > applescript. One would need to write an equivalent script in a > Windows > compatible language I think. > > Stelios' approach seems to be more straight forward, except that I > have not > being able to decipher vtopo and gensur. I stumbled my way through > the > French language to install it and eventually view vtopo in English, > but > gensur is always it French it seems. That stopped me. > > Wolfgang has posted a reasonably comprehensive means to get a > terrain model. > I will try it eventually. http://therion.speleo.sk/wiki/doku.php? > id=ifl > > Bruce > > -----Original Message----- > From: therion-bounces(a)speleo.sk [mailto:therion-bounces@speleo.sk] > On Behalf > Of thomasschilter(a)bluewin.ch > Sent: Saturday, 11 July 2009 5:14 a.m. > To: therion(a)speleo.sk > Subject: Re: [Therion] Google Earth terrain model > > Hello > Does anyone with a Windows machine? Did someone perhaps the Google > Earth > script by Martin reprogrammed? Or what other > options there are? Unfortunately I have no idea about the program. > > Best regards > Thomas > > > > > ------------------------------ > > _______________________________________________ > Therion mailing list > Therion(a)speleo.sk > http://mailman.speleo.sk/mailman/listinfo/therion > > > End of Therion Digest, Vol 44, Issue 9 > ************************************** Dave Clucas dave(a)daveclucas.com http://daveclucas.com http://mycaves.org

1 0

Re: [Therion] Google Earth terrain model
by thomasschilter＠bluewin.ch 13 Jul '09

13 Jul '09

Hello Does anyone with a Windows machine? Did someone perhaps the Google Earth script by Martin reprogrammed? Or what other options there are? Unfortunately I have no idea about the program. Best regards Thomas On 8.7.2009, at 12:03, Bruce Mutton wrote: > Perhaps you have a google earth script example Martin? This one is for AppleScript and for map data. There is a trick - you must mimic the human interaction to save the image. If by script it will be only grey. GoogleEarth: 1. change the units to UTM 2. switch off the terrain, and all features which occupy the screen and which is possibly to take off. 2. put in the corners of area placemarks the best are white crosses. You may go very near - several meters from surface, so you may put the cross exactly. 3. change the units to degrees and take a note the coordinates of upper left and lower right crosses. Reason is the script doesn't recognize the UTM coordinates. 4. modify script according your coordinates - the coordinates of start point for row and for column, the step for row and for column (don't forget the overlay), the end point fot row and for collumn. The altitude of camera 2000 m is quite enough. 5. manually save one image to forder you want to all images will be saved. Delete it. 6. start the script. 7. you should receive the full folder of images numbered according rows/collumns. Photoshop (CS3 and more): 1. record the action to crop of first image to remove all rests of logos from image. 2. make the dropplet from that action. 3. drag all uncropped images to this dropplet. 4. make a panorama from first row in Brigde application - just to change place, no any deformations. No blending!. Save it with suitable name. 5. do the same with another rows. 6. open the middle row and row just below it. Change the size of camvas of middle row to assumed size of map. 7. move the second row to canvas (it will create new layer and resize the second row so it is exactly wide as first one. 8. set the behaviour of second layer to "Difference" and manualy move so as the overlay will be as black as possible :). switch the behaviour to Normal, 9. Do the same with all rows bellow and with all rows above the middle row. You may flat the layers time from time to decrease the size of final map and save it after each row added. 10. resize the image unproportionaly so the distance of crosses horizontally and vertically is in scale you want. 11. crop the map in crosses. 12. you may add white lines after each km/mile and coordinates too. Altitude: as in first case, but with Tterrain on and the script will read the altitude of placemark in the middle of screen. You should use the same trick with UTM and degrees. m.s. Map script for Applescript: -- coordinates of left upper corner of area (degrees) property beginning_lat : 41.764341 property beginning_long : 21.321398 (*41.764341 21.321398*) -- parameters for GoogleEarth set myAltitude to 2000 set myTilt to 0 set myAzimuth to 0 -- parameters for file names property N : 0 property M : 0 -- parameters for end of script (degrees) property mySouth : 41.72 property myEast : 21.4 property long_step : 0.0062 property lat_step : 0.0025 -- GE screenshot -- by franz(a)dimbeck.de -- modofication by martinsluka(a)mac.com -- use at your own risk -- -- Start Google Earth first and allow to connect to server before starting the script, set the Terrain feature of GE off set myLat to beginning_lat set myLong to beginning_long repeat while myLat ≥ mySouth -- last row, where script stops set N to N + 1 repeat while myLong ≤ myEast -- end of row and beginning of next one set M to M + 1 set picfile to "test-" & N & "-" & M -- & ".jpg" -- filename for screenshot -- -- the file will be saved in the folder last used for saving set Overwrite to false -- -whether to overwrite an existing pic. activate tell application "Google Earth" SetViewInfo {latitude:myLat, longitude:myLong, distance:myAltitude, tilt:myTilt, azimuth:myAzimuth} repeat while (GetStreamingProgress) < 100 -- test for 100% received data end repeat end tell -- mimic the human way to save image tell application "System Events" if UI elements enabled then -- test if GUI-scriptimg is enabled tell process "Google Earth" set frontmost to true end tell -- call dialog for screenshot keystroke "s" using {command down, option down} delay 1 -- set the name of the image file keystroke picfile delay 1 -- do it keystroke return if Overwrite then delay 1 keystroke return end if else -- GUI-scripting is not enabled. Tell user how to enable it tell application "System Preferences" activate set current pane to pane "com.apple.preference.universalaccess" display dialog "UI element scripting is not enabled. Check \"Enable access for assistive devices\"" end tell end if end tell set myLong to (myLong + long_step) -- long step - it depends on size of screen. There should be 10-15% overlap of images end repeat set myLong to beginning_long -- return to beginning of row set M to 0 set myLat to (myLat - lat_step) -- lat step there should be 10-15% overlap end repeat

3 2

Size of image files
by Graham Mullan 13 Jul '09

13 Jul '09

Is there a limit on the size of image files that Therion will handle, or is it my computer? Importing a 20Mb png image into a Th2 file caused the program to crash on me, giving a little box labelled "Fatal Error in Wish" and saying "Fail to create pixmap with Tk_GetPixmap in ImgPhotoInstanceSetSize." Interestingly the same image imported perfectly OK in a different computer, but with the same amount of RAM. Graham --- graham.mullan(a)wotcc.org.uk 0117 9502556 or 07887 637064

4 4

Re: [Therion] Google Earth terrain model
by Martin Sluka 12 Jul '09

12 Jul '09

You could use Visual Basic or JavaScript. The reason of a bit complicated way is If one try to download the files directly from Google server they will cut off him. check: http://www.smiletime.org/GeGmGuiv2.html m. On Sunday, 12 July, 2009, at 10:09AM, "Bruce Mutton" <bruce.mutton(a)paradise.net.nz> wrote: >Thomas >As far as I can tell there is no Windows interpreter that will run >applescript. One would need to write an equivalent script in a Windows >compatible language I think. > >Stelios' approach seems to be more straight forward, except that I have not >being able to decipher vtopo and gensur. I stumbled my way through the >French language to install it and eventually view vtopo in English, but >gensur is always it French it seems. That stopped me. > >Wolfgang has posted a reasonably comprehensive means to get a terrain model. >I will try it eventually. http://therion.speleo.sk/wiki/doku.php?id=ifl > >Bruce > >-----Original Message----- >From: therion-bounces(a)speleo.sk [mailto:therion-bounces@speleo.sk] On Behalf >Of thomasschilter(a)bluewin.ch >Sent: Saturday, 11 July 2009 5:14 a.m. >To: therion(a)speleo.sk >Subject: Re: [Therion] Google Earth terrain model > >Hello >Does anyone with a Windows machine? Did someone perhaps the Google Earth >script by Martin reprogrammed? Or what other >options there are? Unfortunately I have no idea about the program. > >Best regards >Thomas > > >_______________________________________________ >Therion mailing list >Therion(a)speleo.sk >http://mailman.speleo.sk/mailman/listinfo/therion > >

1 0

pdf creation for very small pages
by Bruce Mutton 12 Jul '09

12 Jul '09

I have some text files that contain exploration notes about the cave, often a few sentences to maximum half an A4 page. I'd like to place these around a 'finished' cave drawing using the map-image command. It works quite well, but a problem is that the pdf 'generators' that I have either make large white space borders or will not make 'pages' smaller than A4. Using raster images gives a poor result or results in a large file size. Can anyone suggest a means of creating pdf files for a small amount of text where the 'page' is sized according to amount of text (much like Therion does for map outputs)? I'm using Windows. Bruce

4 6

Map previews not preserved when indirectly referenced
by Bruce Mutton 10 Jul '09

10 Jul '09

As far as I can see, the following map definitions should each produce identical pdf outputs, because the second definition is just calling the first; map Late08PreviewBulmerPlanMap \ -projection plan preview above BeautifulBulmerPlanMap@Bulmer Late08PlanMap@Bulmer endmap map Late08OffsetPreviewBulmerPlanMap \ -projection plan Late08PreviewBulmerPlanMap # [200 000 m] none endmap However the preview is produced over the passage with the first definition and not with the second. Why is this and what do I need to do to see the preview with the second syntax? If I remove the # in the second to last line, then I should see an identical output (with a preview AND passage) offset 200m, but again I get the passage only. Again, the same question? (Note that the 'none' is intentional as it relates to the preview of the passage in it's original location, not the previewed passage in the new location - this aspect is working correctly) Any ideas on this? Has been like this from about 5.2.6 thru 5.2.10 Cheers Bruce

2 4

FW: 3D caves in google earth
by Bruce Mutton 09 Jul '09

09 Jul '09

(I just sent this to the forum from a different email account and it seems not to have got through - apologies if you get it twice) I made some progress with the 3D cave visualisation in Google Earth. If I manually change the start of each linestring in the model kml file like this; <LineString> <altitudeMode>absolute</altitudeMode> <coordinates> 172.88465190008699, -40.99745081569796, 701.33433538689223 ... Ie add the altitudemode Then with the terrain layer turned off one can see the cave in 3d at it's true altitude over a flat aerial photograph. Not ideal, but a useful alternative to seeing the surface projection on the surface. Now if only the ground surface could be made translucent... Maybe therion should have an option to select the AltitudeMode to use for model generation. Also it would be nice to have the map -title in one of the kml fields below in place of the current text <name>Therion KML export</name> <description>Therion KML export.</description> Bruce

1 0

Re: [Therion] Google Earth terrain model
by Bruce Mutton 09 Jul '09

09 Jul '09

Is there a way to (easily) extract terrain model data from Google Earth in a format that can be used by Therion / Loch? Bruce

4 9

Co-ordinate system identification in outputs
by Bruce Mutton 08 Jul '09

08 Jul '09

Some time ago the issue of including the output co-ordinate system identification in the outputs themselves was raised. For example; * cave lists, * title pages of atlas's, * map-headers, and * sql database output. Identification could be as simple as "EPSG:27200" or "arbitrary local co-ordinate system" Was anything decided? I think this is quite important, and it's absence causes confusion from time to time Should I add this as a task to the savannah page? Bruce

2 2

Re: [Therion] Google terrain model
by Martin Luethi 08 Jul '09

08 Jul '09

Hi Bruce You might want to use the SRTM data, which is freely available, altough not in very high resolution. Best, Tinu -- Dr. Martin Lüthi luethi(a)vaw.baug.ethz.ch VAW Glaciology http://www.glaciology.ethz.ch ETH Zürich http://people.ee.ethz.ch/~luthi 8092 Zürich +41 44 632 4093 phone Switzerland +41 44 632 1192 fax

1 0