Questions tagged [direction]

The distance-independent relationship between two points in space that specifies the angular position of either with respect to the other

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Determining Flow Direction in ArcGIS for Desktop?

I have a problem with the Flow Direction tool ArcGIS 10.2.2. After running the tool on a digital elevation model in .tif format 16 bit unsigned integer. However the result is an image of 8 bit ...
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177 views

How to indicate a change in transport mode for directions in a multimodal dataset

When I solve a route and generate directions for my multimodal dataset, the end product is not very user friendly: The pedestrian started walking along Main Street and then boarded a bus to travel ...
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792 views

Avoid backtracking while creating loop in Google Map API 3

I am trying to build a solution where i would create loop by google map. My first and only business rule is there should not be any repeated route. But with my demo http://www.mindcrew.in/road%...
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440 views

Display map from python script?

I did a Network Analysis with ArcMap, executed by a python-script (I am building an ArcGIS-Tool). In the very end, I want my directions-output to be shown as a displayed map, so the user can navigate ...
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841 views

Updating a column with line direction in MapInfo

I was wondering if there is a way to update a column in MapInfo with the digitised line direction. I have two TAB files, one is complete lines and the other is sections of the same lines (both have a ...
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34 views

Calculating distance between two feature layers in specific direction using ArcMap?

I'm working on a project in which I'd like to calculate the distance from specific locations within a city (points) to the nearest body of water (polygons) following the path of the wind (direction). ...
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89 views

Is there a service or library that takes a route (with unlimited points) as input and returns text turn-by-turn instructions?

I am making an application that generates routes based on atypical heuristics so I would like a service much like Mapbox Directions API but I could: Disable the internal routing. (i.e. if I give a ...
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661 views

How to show line symbol (arrow) independently of line length in ArcGIS?

I am manually creating a polyline layer in ESRI geodatabase. Lines are of 2 vertices (start-end), variable length but all very short. I am using directional symbol with arrow at the end (or middle). ...
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80 views

Flow direction without DEM / raster

I am trying to figure out flow direction for a stream network and I do not have a high resolution DEM data for the same. I only have information about the stream orders and the network itself. Is ...
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657 views

Determine right or left side of polyline

I'm working with addresses and making a tool to check if structures are on the correct side of the street based on the house number parity matching the road parity. The roads have directionality, so I ...
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255 views

distance between two points on different direction [closed]

I want to measure the distance between two points on the horizon and vertical axis. Is any function on GIS can achieve this?
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186 views

How to compute and fill One-way field in a street shapefile according spacial position

I think it is something complicate, but I hope someone could bring up any idea about. I'm using ArcGIS10, and I have a "One-way roads" shapefile with a One-way field with Y/N. But I need to create a ...
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Python error on QGIS

We are doing the slope analysis for one of our clients and can find the following error every time we do the analysis. We have not faced this situation in the past. The QGIS version which are using is ...
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14 views

Listing grid cell numbers for outlet according to flow direction using ArcGIS Desktop?

I am trying to list grid cell numbers whose flows contribute to the red cell I draw in the figure according to the known flow directions. Directions and colors are shown in the figure. What tool can ...
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44 views

How can I calculate the direction of a Google Maps polygon?

To create a hole in a polygon, you need to know if the inner polygon is in the opposite direction as the outer polygon (See here). How can I calculate this? Here are some examples: var ...
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233 views

Generating wind direction raster from wind's components?

I have a point shapefile, with each point representing the location of a weather station and storing values for wind SPEED and DIRECTION (in degrees). My goal is to create a continous surface (...
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42 views

Changing tracks to vectors in a grid

This is a version of a question that I posted on the GRASS list, but I didn't get any suggestions there. I would like to overlay a grid (cell size about 500 m x 500m) over an animal track created from ...