Problem 569. Encoding Google Maps Polylines

Created by Ned Gulley

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","targetMode":"","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","targetMode":"","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>This problem is based on the Google Polyline Encoder algorithm. This is how Google Maps encodes a line for display on a map. You will be given a single latitude-longitude pair for which you must generate the encoded string used by the Google Maps API.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Example:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Given</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ lat = 42.3 \n lon = -71.35]]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>then</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ str = '_vdaGnpnrL']]></w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Here is the</w:t></w:r><w:r><w:t> </w:t></w:r><w:hyperlink w:docLocation=\"http://code.google.com/apis/maps/documentation/utilities/polylinealgorithm.html\"><w:r><w:t>complete algorithm description</w:t></w:r></w:hyperlink><w:r><w:t>. You can use this</w:t></w:r><w:r><w:t> </w:t></w:r><w:hyperlink w:docLocation=\"http://code.google.com/apis/maps/documentation/utilities/polylineutility.html\"><w:r><w:t>interactive tool</w:t></w:r></w:hyperlink><w:r><w:t> to play around with it (I used it to generate the test points).</w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

48 Solutions
12 Solvers

Last Solution submitted on Jan 01, 2019

Last 200 Solutions

Problem Comments

1 Comment

1 Comment

Richard Zapor on 10 May 2012

Ned,
I suggest creating a random lat and long test case. Use the bmtran entry#3 to solve for the correct vector. Once the test suite is updated it is possible to re-score.

Problem Recent Solvers12

Problem Tags

maps

Problem 569. Encoding Google Maps Polylines

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers12

Suggested Problems

More from this Author49

Problem Tags

Problem 569. Encoding Google Maps Polylines

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers12

Suggested Problems

More from this Author49

Problem Tags

Players