Latest Contributions by PetronilaMandeno

‎01-16-2021

Does anyone know if this has been implemented yet? Or if it still planned?

‎12-14-2020

Attached is the survey form (xlsx). I've come up with a work around (don't edit it!), but for future use, is there a list a characters I should just not use?

‎12-09-2020

Hello, I'm hoping someone out there knows what's going on. I have a survey form with a question with pull down choices. Among the choices are quote symbols (") to designate inches. When I first created the form (some time ago), there was a change in how Survey123 handled those symbols. I had to change something but now I can't remember what. 😞 Regardless, I had somehow got everything to work. But now it is not working again. I'm actually updating the addresses in the database, but a few records, for whatever reason I can't because there's an error in the form. Attached is a picture of the error I get and here's the text of the error: Error: Initializing form... Error: Could not load input field value with name: /MtV_Evaluation_2020_04/_structure/vent_screens and value: mesh_screen_<=_1_8" Does anyone know how I can fix it? Is there a way to fix it?

‎12-06-2020

Okay - here's what I did and it seemed to work (much quicker than I had initial thought it would - bonus!): Buffer the lines by 200 ft Extracted by mask from my fire hazard layer using the buffered layer Converted resulting extracted raster to points Did a spatial join - with the geoprocessing tool, not the TOC tool and specified to get the mode with a 200 foot search radius That did the treat! Thank you all!

‎12-06-2020

Hmm, well, I buffered the roads before I segmented them, but I guess I could buffer the segments... I'll have to try that. And yes, I did use the spatial join via the TOC. I didn't know the geoprocessing tool had more options! I'll try that too. By the way, after the join, it does give a count of how many features it averaged. The values in the count field range from 1 to over 200 points (presumably) were used to get the average (not going to use now because I think I really want the most frequent hazard within 200 feet of the line segment). But I can't find anywhere in the documentation where it explains what 'nearest' means. So I'll definitely check out the geoprocessing tool instead so I can be more specific. Thanks again!

‎12-06-2020

Hello Josh, thank you for your ideas! I do have Spatial Analyst and I thought of using Zonal Statistics, but I don't know how to efficiently create a bunch of zones along the line. Any thoughts on that? Regarding the distance for the spatial join, there isn't an option to do that. I *wish* there was an option, but the only options I get when I do the spatial join is intersect or nearest points. (I don't want the intersect because the hazard layer has the road represented in it and it's just 0 - I want the hazard rating around the line). Thanks again for your idea. I will research more to see if I can come up with a way to use the zonal stats.

‎12-06-2020

Hello Dan - thanks for thinking through this. You are right. I don't need an average. The most frequent hazard rating would be closer to what I need. Thanks!

‎12-05-2020

Follow up: here's what I ended up doing: Buffered my roads by 200 feet With that buffered layer, extracted by mask from the hazard raster Convert those to points (deleting any that were less than 1 or null) Then I split my roads into 200 foot sections (its just a manageable distance to use) Lastly, I did a spatial join, joining the point data to the lines and used the nearest option (instead of intersect) and computed the average only. This will work for now, but I don't know what 'nearest' means. Does it just use the ones it encounters first all along the line or does it use a set distance? Would be cool to be able to set a distance. If anyone else has a more elegant way of doing this, please let me know!

‎12-05-2020

I have almost the same question! My idea was to create points along the line, extract the values from the raster to the point, and then spatial join the points to segmented portions (regular intervals) of the line. But I need an average of the raster value around each point (since the roads are already represented in the raster and a value under the point themselves would just return 0).

‎12-05-2020

Hello, I searched for this, but I just can't find a solution. Here's the problem: I have roads as a vector line file (geodatabase). I have a hazard layer as a raster file (values are from 0 to 10). I would like to assign a hazard rating (1 to 10) to each road. However, hazard changes dramatically from one place along the line to another. So, I know I need to segment the lines. I'll probably do them in 200-foot intervals. With that in mind, I created points along the roads every 100 feet. My idea was to extract the values from the raster layer to the 100-ft interval points, then do a spatial join to the 200ft-segmented roads. However, where the roads are, in the hazard layer, there is no hazard (0) because its a road in the raster too. Is there a way to extract the average of all the cells in a 200ft centered radius around each of the points? And can I somehow ignore 0 values? I suspect I need to do this in python, but hoping there's a tool I'm not aware of. Thanks in advance...

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My Ideas

Latest Contributions by PetronilaMandeno

Re: Field Audio File Collection

Re: Error in Survey123 form - quote symbol

Error in Survey123 form - quote symbol

Re: Average raster value within search area from points

Re: Average raster value within search area from points

Re: Average raster value within search area from points

Re: Average raster value within search area from points

Re: Average raster value within search area from points

Re: Extract Polyline Statistics in relation in Raster

Average raster value within search area from points