 Hello, in this video we are going to explore proximity analysis. You can find it in the Raster Analysis menu and choose Proximity Raster Distance. In this case I want to calculate the pixels that are within 150 meters from houses. So I use the houses Boolean layer and I choose Distance Units, Georeferenced Coordinates and I set a maximum distance to 150 meters. When that is true, so when it is within 150 meters, it will output value 1, Boolean True. All the other pixels will get value 0. Now that means that the output data type has to be changed. Float32 means a 32-bit floating point, it's for continuous raster outputs. In our case we will have integers and they fit within 8 bits and when it fits in 8 bits it means within 0 to 255 as a value we can choose Byte. We could also choose integer 16 which allows larger numbers but then the files will be larger. So in our case we can use Byte for Boolean and discrete rasters that are within 255 integer values. Let's give it an output filename, call it Houses150 and you see that GDAL proximity is executed when I run it. And there is the result, move it to the top, it's a Boolean layer as we expect. So we go to palleted unique values that's for styling Boolean and discrete rasters and I copy the style from Houses and I paste it to Houses150, I can change then the labels. So if it's 0 it is further than 150 meters from Houses and if it's 1 it is less than 150 meters from Houses. Let's do the same for roads. So I have a Boolean raster with the roads, I change it to geo-reference coordinates and I want to know which pixels are within 150 meters from roads and give that Boolean true. I change the output data type as explained to Byte because it's Boolean and I save the result to roads150. We'll execute the algorithm and there we find the result. Let's style it. I'm going to paste the style that's still in memory. Roads larger than 150 meters and true is roads less or equal to 150 meters. And let's also correct that in the legend for the distance to the houses because that should also be less or equal. So in this video you've learned to calculate the maximum distance to a class and to style it as a Boolean raster.