POST
|
We have some money to purchase a UAV (quad-copter) for use in a field mapping course and student projects in our department. I'm not familiar with all of their capabilities, but I'd like something that has GPS, easy ArcGIS integration and the ability to capture multi-spectral (visible, IR and perhaps thermal imagery) via a camera or one that can be mounted using a gimbal. We'd look to do high-scale work, so it would not need to go high for very long. It does not need to be too complex - just something that is fairly intuitive and provide students with a good basis for what they may see in the future. Pardon my ignorance, but I have a couple of questions: 1 - is it easier to just get a UAV with a camera? Do these cameras have various filters? 2 - if not, what is the best type of camera for use for a UAV that we are able to mount? 3 - what types of UAVs have you used in the past? Which ones would you suggest? We'd like to keep it as inexpensive as possible, so we'd probably hope to spend less than $2,000 or so. We're pretty unfamiliar with this new technology, but students have expressed interest and us as faculty hope to learn a lot from this too. Thank you for any insight.
... View more
06-30-2016
12:48 PM
|
0
|
0
|
1820
|
POST
|
I like the ideas presented in this tool. I've heard of it before. Thank you very much. At the end of the day, it looks like you need to hand select candidate districts based on you input parameters. Maybe I am missing something. I'm not sure how well it will work in this application because 1) I have the polling places around which I want to create my polygons and 2) I want to create 165 polygons, which would take a long time in this application. If I can combine the 2 where I can optimize a universe variable in the Districting Application, I would be good to go.
... View more
05-27-2014
09:45 AM
|
0
|
1
|
577
|
POST
|
Hello - I am working with a student on gerrymandering and he has proposed looking at the polling districts in our county in which the drive time to each polling location is minimized while serving the same approximate population. The districts will be based on the boundaries of the census blocks. Using the polling places as the facilities and the census block centroids as the demand points, I've tried running a Minimum Impedance solution using the census block population as a weight. From there, I would extract the facilities name and census block FIPS code, dissolving my census blocks based off the facility that my NA output gave me. I've had some solutions, but the populations vary a lot between my solutions. Any ideas how to solve this? I'm not a NA expert and I'm having a hard time wrapping my head around how to bring in the population / weight component. I know in rural areas, the weight * impedance factor will be higher. Thank you for any input.
... View more
05-26-2014
09:36 AM
|
0
|
3
|
2776
|
POST
|
I am working on a raster-based accessibility problem in which I have 3 layers. One is a points location that we will create regions around. The second is a travel-time raster the represents the amount of time it takes to travel through the pixel and the third represents the number of people that live within each pixel (derived from population density). I am working with a social geographer/political scientist to find "travel sheds" that are constrained by population for each of the points. I have created travelsheds already, but in some instances, points are located near each other and one travel shed is extremely small. In that case, I want them to grow in opposite directions, as each will "gobble" up population until it exceeds my threshold so that each travelshed has approximately the same number of people. In essence, I want to assign a pixel a "basin" that is closest to a point, but has not exceeded the population constraint. Otherwise, it will be assigned to the next closest point that hasn't satisfied the population criteria, etc... Can anyone think of any ways to do this in Spatial Analyst? I'm stuck at the part where I am trying to constrain by population. I've tried playing with a "people-minute" raster, but not sure how that bring that back to a polygon shape. I'm also familiar enough with Python and R if this can't be done in Spatial Analysis. Any ideas that would point me in the right direction would be greatly appreciated. I'm also not afraid to try new things if there is something out there that can easily do this. Thank you. Tim
... View more
05-15-2014
10:52 AM
|
0
|
0
|
328
|
Online Status |
Offline
|
Date Last Visited |
06-22-2021
02:16 PM
|