3
votes
Transcribing subdivision coordniate geometry in QGIS
This is really a comment but it is too long for that box. Many if not most of the old survey/plan maps I had to deal with were created without any reference to a coordinate system. Your snippet looks ...
- 1,829
3
votes
Accepted
old coordinate systems that were "made up" by surveyors decades ago
I sometimes call these "local coordinate reference systems" as they're designed to be used in this particular area and may not have any connection to a coordinate reference system that covers a larger ...
- 19.1k
3
votes
Accepted
QGIS - tool to plot polygon from point with known bearings and distances
Probably you can do this in two steps:
[Step 1] Create a series of points layer (Pt1, Pt2, ...)
[Step 2] Build the polygon at each point geometry from [Step 1].
Let me try to provide an answer for ...
- 31.2k
3
votes
What does delta mean?
Delta is the angle from the center of a theoretical circle on which each curve lies. For each curve, imagine two straight line segments of length Radius that converge at the center of the circle, and ...
- 2,653
2
votes
calculate the length of the split lines
In the Attribute Table view, if you right-click a column, you will see Calculate Geometry, Length is an option.
Also, if you put your data into a file geodatabase, ArcGIS will automatically add a ...
- 7,495
2
votes
Projected Coordinate System for COGO descriptions?
Legal descriptions have bearings and distances, not rectangular coordinates. While the bearings may be similar to those of some projected coordinate system, they are usually only correct relative to ...
- 9,001
2
votes
Inputting legal description into ArcMap using COGO tool
According to desktop.arcgis.com/en/arcmap/10.3/manage-data/editing-parcels/tangent-curve.htm
you can enter curves via the Tangent Curve dialog.
The following assumes that you do have tangent data ...
- 9,001
1
vote
Same coordinate system yet spatial reference does not match data frame
They are not showing the same thing, look closely at the coordinate system names. Your dataframe uses "NAD_1983_2011_StatePlane_California_V_FIPS_0405_Ft_US" (WKID:6424), which is different ...
- 211
1
vote
Entering curve 6 call out in traverse table using ArcMap
Without being able to see the rest of the calls I'm not sure how it would finish up. But this is what I would do given the calls. I just entered it as a curve with an Arc Length of 20.20, a Radius of ...
- 11
1
vote
Shapefile from heading and distance directions for property boundary
When you have land survey data – a sequence of bearings/azimuths and distances around a land parcel – but no starting point coordinates, the calculations you do are for the purpose of ...
- 9,001
1
vote
Shapefile from heading and distance directions for property boundary
Here's the algorithm you want in pseudocode:
set x=0, y=0
output x,y
for each row of the data:
delta_x = distance * cosine(heading)
delta_y = distance * sine(heading)
x = x + delta_x
y = y + ...
- 66.5k
1
vote
Offsetting 100 ft from line feature while editing in ArcMap?
Probably the easiest way is with the "Copy Parallel" tool.
While editing and you have the feature selected, just click the editing toolbar dropdown and select copy parallel. You'll then enter the ...
- 2,009
1
vote
QGIS Azimuth and Distance Plugin curve
I had this same issue but contacted the developers and now this has been corrected. You will need to update to version 0.9.11 of the plugin.
- 136
1
vote
How to get intersection point from two lines (two coordinated points and two bearings)
Or if you are happy with just plane trig solution in just 19 lines of code. Here it is in U-Basic.
This differs from the algorithms for geodesics solution by about 6mm at a distance of 175 meters.
...
- 11
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