Going to town with maps

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Going to town with maps

• openguides.org community sites

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What is OpenGuides?
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What is OpenGuides?

• A set of wiki websites about cities

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What is OpenGuides?

• A set of wiki websites about cities
• Geographical wiki software

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What is OpenGuides?

• A set of wiki websites about cities
• Geographical wiki software
• A growing on-line community

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What is a wiki?

• A wiki is an open content website
• Anyone can add and edit pages
• A wiki serves two communities
• Reference users
• Contributors

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How OpenGuides came about

• A few London Perl Mongers were looking for an
  existing community site for London
• They wanted a place to keep notes on venues and
  events.
• They didn't find one
• So they just did it
• The site was called Grubstreet

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How OpenGuides came about

• The original software we were using was a single
  monolithic script
• Grubstreet lasted a year before we decided to
  rewrite the software
• The rewrite took a further 6 months
• A new modular approach with CGIWiki
• OpenGuides being a geographic application of
  CGIWiki

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What has all this got to do with SVG?
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What has all this got to do with SVG?

• We want to be able to draw maps

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What has all this got to do with SVG?

• We want to be able to draw maps
• We want to be able to show where all the places
  actually are, relative to each other.

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What has all this got to do with SVG?

• We want to be able to draw maps
• We want to be able to show where all the places
  actually are, relative to each other.
• SVG provides a graphical XML
• Which is what we were looking for

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We have the data

• Pages already have X / Y coordinates
• Ordnance Survey grid reference
• Pages already have categorisation, e.g.
• Pubs
• Restaurants
• Tube Stations
• Major attractions
• etc.

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Let's draw some icons
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Drawing a map

• These can be placed in a rectangle
• Positioned according to their X and Y
• Possibly with an existing map as backdrop
• A clickable link on each icon

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Moving forward

• Routes a series of X Y locations
• Tube lines
• Roads
• Areas represented by polygons
• Again a series of points. This time ending where
  you started
• Have an inside and an outside