Capturing a point (XY coordinates) along a line

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Ian Oldfield

Jan 10, 2023, 6:26:33 AMJan 10
to MapInfo-L
Hi Guys,

I would be grateful for advice/information/solution on how to capture the coordinates part way along a line.  I have the following data (all in BNG):
Point data - with reference/coordinates eg. properties, such as housing, shops, etc
Line data - road centre-line segments from junction to junction.

I have used the Distance Calculator function to create lines from the property to the nearest point on the road segment.  That works very well and is easy to use.  However, what I would like to capture is a point, say typically about 4-5 metres, from the road line towards the point data.   I can do a simple calculation to get the mid-distance, but not part way along.

Hopefully, the map below shows the requirement.   Thank you very much for any help.
BTW, I'm using MI10 and prefer a non-MB solution if possible.

Thank you all very much.

Ian.

Ian Oldfield, MSc, CertEd.

Synthetic Data Ltd

Mob: 07508 944826

Ian Oldfield

Jan 10, 2023, 7:16:10 AMJan 10
to MapInfo-L
Apologies,

I have an initial solution - by adding one-third of the respective distance to each coordinate.  This first example has given a good result but I'm not sure how well it will work on all the data, so any smart solutions still very much appreciated.  Here's my first sample map - red dots representing outside the property, ie. in the street.

Kind regards

Ian.

Peter Horsbøll Møller

Jan 16, 2023, 4:58:48 AMJan 16

Hi Ian

I hope you find this useful

Peter

Peter Horsbøll Møller
Principal Sales Engineer - Distinguished Engineer

From: 'Ian Oldfield' via MapInfo-L <mapi...@googlegroups.com>
Sent: Tuesday, 10 January 2023 13.16
Subject: [MI-L] Re: Capturing a point (XY coordinates) along a line

 This message originated Externally. Use proper judgement and caution with attachments, links, or responses.

Apologies,

I have an initial solution - by adding one-third of the respective distance to each coordinate.  This first example has given a good result but I'm not sure how well it will work on all the data, so any smart solutions still very much appreciated.  Here's my first sample map - red dots representing outside the property, ie. in the street.

Kind regards

Ian.

On Tuesday, January 10, 2023 at 11:26:33 AM UTC Ian Oldfield wrote:

Hi Guys,

I would be grateful for advice/information/solution on how to capture the coordinates part way along a line.  I have the following data (all in BNG):

Point data - with reference/coordinates eg. properties, such as housing, shops, etc

Line data - road centre-line segments from junction to junction.

I have used the Distance Calculator function to create lines from the property to the nearest point on the road segment.  That works very well and is easy to use.  However, what I would like to capture is a point, say typically about 4-5 metres, from the road line towards the point data.   I can do a simple calculation to get the mid-distance, but not part way along.

Hopefully, the map below shows the requirement.   Thank you very much for any help.

BTW, I'm using MI10 and prefer a non-MB solution if possible.

Thank you all very much.

Ian.

Ian Oldfield, MSc, CertEd.

Synthetic Data Ltd

Mob: 07508 944826

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Ian Oldfield

Jan 16, 2023, 6:42:43 PMJan 16
to MapInfo-L
Hi Peter,