Latest Contributions by JenifferSoto_Perez

I'm trying to split polygons into ones with a width of 0.1 miles so that a data point is in the center of the polygon. The center data points (in pink) are 0.1 miles apart from each other. To do this, I created a center line and then generated points along that line every 0.05 miles (yellow points). These are my markers to know where to split the polygon for the segments to be 0.1 miles wide. I tried using Divide (I'm in ArcGIS Pro), which lets you split a polygon by area, proportion and width. In the image below it shows that it works fine if the polygon forms a straight edge similar to what would you see as roads. I'm dealing with river channels that have irregular shapes, so I have to constantly fix the angle of the split.  At this point, my technique of splitting the polygon manually by using the yellow point as an anchor is faster than going through the divide menu every time I have fix the angle of the line. The area is way larger than what the figure shows, so it is taking me too long! Anybody know of a magical python code to batch split the polygon, or a way to generate lines on the yellow points? At this point I could use the split along line tool. All suggestions are welcome! -Jen ... View more

I'm using the Spatial Analyst Contour tool for converting raster outputs to vector. These raster outputs are the result of Spline with Barriers interpolation tool and their values vary significantly. I'm wondering if there's a script I can add to the contour tool so it identifies the range of values in a raster file and then selects the contour interval according to the amount of classes I want. For example, if I have values from 0-140 and I want ten classes/intervals then 140/10 = 14 contour intervals. I'm currently doing this manually, but is not time efficient. Applying graduated colors as primary symbology does not change or generate new contours and I need these changes to be preserved to be used in a Story Map. Any suggestions are highly appreciated! ... View more

Hi, I'm Jeniffer Soto from the Biogeochemistry group at USGS. We want to create a prediction surface for different water quality parameters along the Sacramento-San Joaquin Delta. Predictions are currently being completed using Kriging/Cokriging (we determine which is the best method using the summary report), and Spline with barriers. These prediction results will be extracted using the "Extract values to points" tool from the raster output to make temporal comparisons. We are also interested in generating a vector file for presentation purposes. Our primary concern at the moment is which interpolation method is best suitable for our needs. For example, Kriging works best for showcasing purposes since we have the option of export as a vector, but some of the surface predictions are not accurate because it interpolates across the entire surface. On the other hand, we can set boundaries using Spline with barriers, so the interpolation occurs only within the river channels. The problem with this method is that the output is only a raster file. I can easily convert the prediction layer to vector, but the image will still be pixelated when you zoom in (this maps will eventually end up in a story map). I need a vector file so I can clip it to my delta polygon. Also, the Spline with barriers tool does not allow for much flexibility like the searching neighborhood, applying transformations to the data, and it does not give you a cross-validation summary report when the interpolation is complete. Again, I can calculate this myself, but it becomes too time consuming because we are generating over 100 maps. If we want more information regarding background processes and algorithms applied for this interpolation methods, should I open an Esri case? We are interested in the possibility of setting barriers with Kriging or scripting Spline with barriers, so it produces a vector layer instead of having to convert from raster to polygon. We are not familiar with software engineering processes for Esri products, so we would like to have an understanding of what's possible with these tools. Let me know if you need additional information or have any suggestions. ... View more