osxsoftware-recommendationstools
Most Opensource tools are cross platform; however, some GIS tools such as ArcGIS are platform specific (windows only). What are some of the GIS tools that are usable on the mac?
EDIT
Although thank you for putting the basic apps in your answers, my question specifies that Most if not all of opensource tools are cross platform, I was really hoping to get more obscure libraries, packages, and programs that I didn't know about on OSX similar to dotspatial and sharpmap for windows
I've been exploring SciPy's signal.convolve approach (based on this cookbook), and am having some really nice success with the following snippet:
import numpy as np
from scipy.signal import fftconvolve
def gaussian_blur(in_array, size):
# expand in_array to fit edge of kernel
padded_array = np.pad(in_array, size, 'symmetric')
# build kernel
x, y = np.mgrid[-size:size + 1, -size:size + 1]
g = np.exp(-(x**2 / float(size) + y**2 / float(size)))
g = (g / g.sum()).astype(in_array.dtype)
# do the Gaussian blur
return fftconvolve(padded_array, g, mode='valid')
I use this in another function which reads/writes float32 GeoTIFFs via GDAL (no need to rescale to 0-255 byte for image processing), and I've been using attempting pixel sizes (e.g., 2, 5, 20) and it has really nice output (visualized in ArcGIS with 1:1 pixel and constant min/max range):
Note: this answer was updated to use a much faster FFT-based signal.fftconvolve processing function.
the path is /Library/Frameworks/GDAL.framework/Programs which is a symbolic link to the latest version installed /Library/Frameworks/GDAL.framework/Versions/1.8/Programs
To use the commands in the console (shell):
export PATH=/Library/Frameworks/GDAL.framework/Programs:$PATH
gdalinfo ..
Or put this command in the bash_profile file
Best Answer
go to kingchaos and you have all the FOSS4G desktop GIS compiled for Mac: - GRASS GIS - Quantum GIS + PostgreSQL, PostGIS, GDAL and others (Mapserver)
You have also OpenJump, GvSIG, Udig, Ossim and Cartographica (not free, 495 $) + R and R spatial packages + Merkatoor (OpenStreetMap editor) + some other things