Re: [gdal-dev] What is CPL?

2017-06-19 Thread NASAHARA Kenlo
? Or is CPL a general library used commonly in many projects outside GDAL as well? On Tue, 20 Jun 2017 02:35:09 +0200 Mateusz Loskot wrote: > On 20 Jun 2017 02:24, "NASAHARA Kenlo" <24dake...@gmail.com> wrote: > > Dear GDAL people, > > Let me raise a silly ques

[gdal-dev] What is CPL?

2017-06-19 Thread NASAHARA Kenlo
Dear GDAL people, Let me raise a silly question, please. What is "CPL" which appears around the GDAL world, such as "CPLError"? I tried to figure out but I still cannot. For example, Combined Programming Language computer pidgin language Combined Programming Language ... -- Kenlo Nishid

[gdal-dev] gdal 8-bit signed int support unavailable?

2017-06-19 Thread NASAHARA Kenlo
Hi, GDAL people: I want to handle 8-bit signed integer raster data by C++ but it seems GDAL does not such data type: https://naturalatlas.github.io/node-gdal/classes/Constants%20(GDT).html#prop-gdal.GDT_Byte Does it mean GDAL cannot handle 8-bit signed int? -- Kenlo Nishida Nasahara Faculty of

[gdal-dev] mapping of shadows casted by other slopes

2017-05-16 Thread NASAHARA Kenlo
Dear GDAL people: Using DSM, I want a "shadow map" not only by the slope itself but also by the other slopes. I mean, if a tall and steep peak exists, and if it is illuminated by the sun from near the horizon, the shadow of the peak falls on a wide area of the foot of the mountain. Such shadow i

[gdal-dev] Making a thumbnail truecolor jpeg from a 4-band GeoTiff

2015-08-15 Thread NASAHARA Kenlo
Hi, GDAL people, I am trying to make a thumbnail from a GeoTIFF image using gdaladdo and am confronting a problem. My GeoTIFF file is ALOS AVNIR2 file (4 bands). After browsing the mannual (http://www.gdal.org/gdaladdo.html), I tried the following command: $ gdaladdo -ro --config COMPRESS_OVERV