3,854 reputation
33180
bio website elegantdesigns.ca
location Fredericton, Canada
age 32
visits member for 4 years, 3 months
seen 13 mins ago
GIS, Transportation, Civil Engineer in New Brunswick Canada. I'm interested in using FOSS, python, QGIS, PostGIS, GRASS, and QT to develop open source engineering applications

21h
comment Merging and joining two line feature classes while maintaining attributes from both using ArcGIS for Desktop?
I also posted a new question regarding the issue here
1d
comment How to work with accentuated strings in Python scripts in ArcGIS Desktop Field Calculator?
I hope this helps.
1d
comment Merging and joining two line feature classes while maintaining attributes from both using ArcGIS for Desktop?
Hi Richard, for some reason, this method is duplicating a lot of links and also creating new fmeasures of -0.000023. any suggestions?
Sep
16
comment Merging and joining two line feature classes while maintaining attributes from both using ArcGIS for Desktop?
I did a bounty on this answer that I'll reward you with when it allows me to!
Sep
12
comment Merging and joining two line feature classes while maintaining attributes from both using ArcGIS for Desktop?
@KirkKuykendall A piece of road can only either have one event scheduled or none. However, that event could be over many segments (control sections) and do not necessarily match the boundaries. i.e. it could start half way and end 3/4 of the way of a segment. So an example Route_1_control_Section_1 2.5 to 10.6, Resurface, Route_1_control_section_2 0.0 to 3.8, crackseal. Conversely 95% of the existing segments (layer_1) will get no work scheduled next year.
Sep
12
comment Merging and joining two line feature classes while maintaining attributes from both using ArcGIS for Desktop?
@KirkKuykendall Did my above comment answer your question?
Sep
12
comment Merging and joining two line feature classes while maintaining attributes from both using ArcGIS for Desktop?
@KirkKuykendall - Field personnel take layer 1 and assign where where work is scheduled using excel in the form of ROUTE_ID, FROM, TO, DATE . I then took that information and created an event layer about it. The result should be merged into Layer_1 yet pereserving the attributes.
Sep
12
comment Merging and joining two line feature classes while maintaining attributes from both using ArcGIS for Desktop?
as a note, I don't want to maintain duplicate segments, Scheduled events should replace existing portions of layer 1. They'll have the attributes from layer 1 and the new ones from layer 2
Sep
12
comment Merging and joining two line feature classes while maintaining attributes from both using ArcGIS for Desktop?
Thanks! We have access to ArcInfo license.
Sep
10
comment What's the difference between Spatial Join Tool and Spatial Join Function in ArcGIS?
you'd think they'd bump it up a bit from low :(
Aug
18
comment Selecting maximum Value based on other field using ArcMap?
If you can use ArcPy or python in the data. Loading it into a list then doing a for loop makes it quiet easy. data = [(100,1), (200,1), (300,2), (500,2), (100,1), (400,3), (400,2), (200,1), (200,4)] d = {} for former, latter in data: d[former] = max(latter, d.get(former, 0))
Aug
6
comment How to create a line layer which connects a point layer to a line layer?
Thanks Pedro, I do lots of Transit and Traffic plans, but now moving to doing a lot of it through Python, ArcGIS, and QGIS. I will try and implement your answer in the next few weeks. To answer your questions in your post: I'm testing a traffic demand model on 1,000 small zones to see how it performs, and then I'll modify the dummy links manually where I see fit.
Jul
19
comment Mapping Trails with GPS - Hardware Suggestions
Have you considered getting a map-less data logger you can throw in your backpack or on your key chain to accompany your handheld device? These things can run you between $50-$200
Jun
12
comment How to make a routable graph from a Point and a Line shapefile, using Networkx?
@scw I was going to post your answer to my question, but you beat me to it haha. Great answer ;)
May
30
comment ArcGIS 10: Create an event linear layer from a point layer based on directionality
So far this is working better than the other solution. Can you explain the excel part about adding previous and next points further please?
May
29
comment ArcGIS 10: Create an event linear layer from a point layer based on directionality
@mr.adam I created this chat room here so we can talk about this a bit further chat.stackexchange.com/rooms/14805/speed-layer
May
29
comment How to simplify a routable network?
Any issues with maintaining "weird intersections" or grade separated roads?
May
29
comment ArcGIS 10: Create an event linear layer from a point layer based on directionality
@mr.adam In the fl = arcpy .. etc, shouldn't that be before the for loop to avoid the script creating multiple files? I'm using ArcGIS Advanced and so far, I've modified your script to fit my needs. I'm just trying to fix an issue with fl. Errors: arcgisscripting.ExecuteError: Failed to execute. Parameters are not valid. ERROR 000368: Invalid input data. ERROR 000732: Selecting Features: Dataset fl does not exist or is not supported Failed to execute (SelectLayerByLocation).
May
28
comment ArcGIS 10: Create an event linear layer from a point layer based on directionality
the segments and speeds might not be split the same way as the data is collected by two different entities; furthermore, a segment can have different speeds in either direction.
May
28
comment ArcGIS 10: Create an event linear layer from a point layer based on directionality
Now that you have any points to comment; where does the speed layer come in place? Did I misunderstand your buffer command?