Pixel size

Discussion created by sabersakr on Apr 23, 2014
Latest reply on Apr 24, 2014 by mark909

I'm newbie on arcgis. I'm doing an erosion map
I have the following vector layers:-contour points and dimensions: from a topographic base with a scale of 1/5000).

litholigique map 1/50, 000, ground cover 1/25000.

By exple: To build MNT area we must specify the size of the cell (convertion TIN to raster). My question is:

- How to choose the size of the output pixel or simply the value proposed by ARCGIS is preserved?

- If the pixel size will affect the results of a raster output after calculation (multiplication raster layers to build an erosion map: it is necessary to have the same pixel size for all raster layers in the calculation?

Thank you