I have a shapefile that has lat/long points data of specific facilities in the US. This data is joined with census blocks group population data because eventually I want to calculate how many people live within a 1 mile and 3 mile radius of each facility.
The issue I am having is I do not want just a uniform point for each facility. I want each point to be represented by how many acres the facility is (I have acreage data in the table).
Now in QGIS, I can arrange the size of each point based on acreage, but its not geographically accurate. It just shows that small acre plots are 1 pixel in width, and big acre lots are >1 pixel in width. (I did this by using the "Assistant | Symbol Size" tool in the "Symbols" tab of "Layer Properties"
How can I get each point to physically be the acre size, and then create the 1 and 3 mile buffers around that? So if there is a plot of land that is 25 acres, I want a circle that is exactly 25 acres in size. THEN place a 1 mile and 3 mile boundary on that.
Some photos to help explain what is going on.
Here, the points are all uniform (with the 1 mile boundary in purple, 3 mile boundary in blue), but I would like them to be based on the actual acreage. Like if the plot of land was 25 acres, I want a circle that is exactly 25 acres in size.
I can adjust the points like this, but its not physically and geographically real to the size of the acre. Now I understand that maybe the boundary of these plots of land are not uniformly circular, but that is an assumption I am making to make the analysis possible.
My methodology. need help with step 2
I am using QGIS.