Latest Contributions by AliciaShyu_Love

I have some elevation data as contour lines but there are places where the contours just stop. I've been reading about interpolation but they all start with points, is there any interpolation method that I can do using the existing contour lines?  Thanks! ... View more

Can I start using the parcel fabric to input road centerline information before I add any parcel information? I see that the typical workflow is to add parcels, right of way and road centerlines in that order. I was wondering if I could start backwards with centerlines first and then move to right of way and lastly parcels. ... View more

'm trying to input a road center line using COGO, I don't have any experience using the COGO toolbar on any ArcGIS version. I'm currently using ArcGIS desktop 10.2. The road project is roughly 6 miles long with many curves.  My first attempt resulted in a line that is very distorted and far away from the road on the imagery. After reading more about ESRI's COGO ground to grid correction (ArcGIS Help 10.2 - About applying ground to grid correction) and adding the convergence angle and scale factor, the resulting line is still roughly 200 + feet away from the road on the imagery. The dataframe is set up for NAD83 HARN State Plane WA South. I also took it a step further and reprojected the NAIP imagery to the same CRS as the dataframe. I agree, I think is a convergence angle issue. The plans don't have convergence angle or scale factor information. I forgot to mention that I'm using the convergence angle and scale factor from a near by survey control point from NOAA's NGS. My questions are: is this kind of distortion normal? if so, how do you fix this? I'm thinking now I could use the Spatial Adjustment toolbar to move the cyan line and place it over the road. Is this an acceptable practice? The blue line represents my first attempt and the purple line is my 2nd attempt. You can see that the purple line is closer to the actual road on the imagery. ... View more

Is there another use for "Calculate Geometry" aside from calculating area, length and points? I already read the help section ArcGIS Help (10.2, 10.2.1, and 10.2.2)  and it's very informative. However I was told today that you can use calculate geometry to check that the coordinates of a feature are correct. If you have features with coordinates and they're displayed in the correct location, why would you need to use calculate geometry to check that. So although this makes not sense to me, I went ahead and used calculate geometry to check that the feature (points) was accurately displayed. CALX & CALY are the new x, y coordinates using the calculate geometry option. So my questions are: 1) Is this a valid/correct alternative use of "calculate geometry"? 2) If so, why are my new coordinates different from the original x & y? ... View more