I have a raster data of 1992 and a 'shapefile' of Los Angeles county. I want to reclassify the pixel value of the raster data set to 'no data' or zero in the region where the raster and the 'shapefile' overlaps. I'm using ArcGIS 10.1. I tried using spatial analyst tool> 'reclass'. But I'm not getting the desired result.
I'd try the following methodology to get your result:
Create a new field (NO_DATA) in your vector file ("No Data Layer") for your no data values records, for example "-9999".
Convert your polygon ("No Data Layer") to raster, selecting the same pixel size of the raster data to overlap and the pixel value NO_DATA.
Mosaic both raster dataset to a new raster, putting your "No Data Layer" on the top of the list and select the option "mosaic_colormap_mode" to FIRST: The pixel value from the first raster dataset in the list will be applied to the output raster mosaic.
In your new raster, reclasiffy your No data value (for instance, -9999) to "No data"