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Questions tagged [perpendicular]

In elementary geometry, the property of being perpendicular (perpendicularity) is the relationship between two lines which meet at a right angle (90 degrees).

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Create perpendicular line transects - PostGIS

I have a river network (Line with arrow as shown in image below) and I need to create perpendicular lines to the river at every 15 meters as you walk along it (see image below). Is there a function in ...
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0answers
48 views

Analyzing single Polygon or Polyline that overlaps itself using ArcObjects?

My current process is to determine obstructions in an area and determine properties of those obstructions as they relate to a center polyline. Per the image below I take a polyline which denotes a ...
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Calculating perpendicular line in ArcPy only works for shapefiles?

I'm trying to use this field calculator expression on field Shape to generate a perpendicular line, of 0.01m, at the midpoint of each existing line feature in ArcGIS: CALCULATE FIELD (data management)...
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1answer
98 views

Create a orthogonal lines [duplicate]

I have a shapefile of lines and I would like to know an Arcmap tool to create a new shapefile with orthogonal lines from the midpoint of that existing line shapes. I know that it is possible to do it ...
2
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1answer
314 views

Draw shortest line between a point and a line

I am trying to draw a line between a thousands of points and a line using QGIS. I then want to carry out some calculations on the new lines to see which polygons they intersect in a different layer. ...
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0answers
146 views

Shortest path creation between two lines

I've a raster of temperature of a river, I'd like to extract values horizontally, so from bank to bank, shortest path. so basically extract pixel values along the red lines in the schema I did. What ...
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0answers
296 views

Create a perpendicular line of points to another line

i have two problems over here. QGIS 1- I need to create a perpendicular line to connect multiple points to multiple lines but these lines have to follow a sequence of column. 2- And these ...
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1answer
2k views

Automated creation of perpendicular lines between a point layer and a line layer

I am using QGIS and I am looking for a script, or a plugin, that can create a large number of perpendicular lines from a point layer to lines in a separate line layer. So far, I've tried to use the ...
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102 views

Create a perpendicular segmented lines inside a polygon

I need to know a distance from one edge to another. This distance is given by the length of the perpendicular segment every (x) distance. The distance attribute can stay in the polyline layer. But I ...
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1answer
406 views

Generating line offset, perpendicular using PostGIS?

I'm trying to generate two line offsets from a line but I'm having problems generating them as they should be. Using PostGIS select st_asgeojson(st_union(the_geom)) from ( select ST_Line_Substring(...
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1answer
1k views

Draw a perpendicular line between point and line layer

I have to iterate over a point and line layer to draw the perpendicular line from each point to the nearest line. The QGIS geoalgorithm "DISTANCE TO NEAREST HUB" isn't helpful because the nearest hub ...
4
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1answer
489 views

Is there a shortcut to create only right angles while editing?

While digitizing in ArcGIS Pro, I am wondering if there is a way while creating segments to allow only right angles. I understand that this can be done manually by entering direction, deflection, or ...
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3answers
2k views

Rotate symbols perpendicular to line angle (ArcGIS)

I have lines representing curving streams (blue line in the Picture) and want to angle symbols perpendicular to the angle in their particular Locations (point features symbolized as red lines in the ...
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1answer
531 views

Algorithm to draw a perpendicular line on Google earth (KML)

I have two points say A (lat,lon ) and B(lat,lon) and I want to draw a perpendicular bisector line to AB such that any point (C) on the perpendicular line satisfies AC=BC. All I want is a function ...
6
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1answer
720 views

Calculate distance from all points to all lines within 10km using FME?

I have a polyline shapefile and a point shapefile. The points are along the polylines. There are over 100 lines and over 10,000 points. I want to calculate the perpendicular distance from every ...
32
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1answer
6k views

Drawing perpendicular lines in PyQGIS?

I have a situation like this: What I need to do is to connect each point to every line that is at most, let's say 200 m, away from the point. In other words, I need to draw a perpendicular line from ...