Start spanish translation: full copy of guide and front page.

Author: wildintellect

_config.yml

@@ -18,6 +18,14 @@ translations:
     feedbackspan: "Was this chapter helpful?"
     feedback: "Let us know and help us improve the guides!"
     proceed: "proceed to next chapter"
+  es:
+    tagline: "Aprende OpenStreetMap Paso a Paso"
+    contribute: "Ayuda a mejorar las guías"
+    trainingspan: "Are you a workshop organizer?"
+    training: "Check out training material for this guide (in English)"
+    feedbackspan: "Was this chapter helpful?"
+    feedback: "Let us know and help us improve the guides!"
+    proceed: "proceed to next chapter"
   fr:
     tagline: "Learn OpenStreetMap Step by Step"
     contribute: "Help improve our guides"

_posts/es/0100-01-01-contribute.md

@@ -0,0 +1,14 @@
+---
+layout: contribute
+permalink: /es/contribute/
+lang: es
+title: Contribute
+contributetitle: "Help improve our guides"
+startwith: "Ready to get started?"
+startA: "Send us feedback"
+startB: "Create a translation"
+startC: "Improve Language"
+startD: "Fork and improve site"
+nosearch: true
+---
+This guide is created and maintained by the [OpenStreetMap](http://www.openstreetmap.org/) and [Humanitarian OpenStreetMap](http://hotosm.org/) community. You can help us improve this guide by simply sending your feedback or by contributing directly to it via [Github](http://github.com/hotosm/learnosm).

_posts/es/0100-01-01-index.md

@@ -0,0 +1,21 @@
+---
+layout: front
+permalink: /es/
+lang: es
+fronttitle: "OpenStreetMap is a free street level map of the world, created by an ever growing community of mappers."
+frontintro: "Anyone can edit OpenStreetMap. Here you can learn how Learn OSM provides easy to understand, step-by-step guides for you to get started with contributing to OpenStreetMap and using OpenStreetMap and using OpenStreetMap data. If you are interested in running an OpenStreetMap workshop, check out the LearnOSM trainer resources."
+ourguides: "Our Guides"
+searchtext: "What are you looking for?"
+begspan: "New to OpenStreetMap?"
+beg: "beginner's guide"
+interspan: "More guides (currently in English)"
+inter: "Intermediate, advanced, QGIS..."
+advspan: "Organizing a workshop?"
+adv: "See our trainer material"
+faq: "Common Questions"
+faqA: "What is OpenStreetMap?"
+faqB: "Who created LearnOSM?"
+faqC: "How can I get started mapping?"
+faqD: "Where can I find additional help?"
+nosearch: true
+---

_posts/es/0100-01-01-status.md

@@ -0,0 +1,11 @@
+---
+layout: default
+permalink: /es/status/
+lang: es
+title: Translation Status
+nosearch: true
+---
+
+## Translation Status - All Languages
+
+- [Spanish]({{site.baseurl}}/es/status/)

_posts/es/0200-12-20-beginner-all-chapters.html

@@ -0,0 +1,13 @@
+---
+layout: doc
+title: All Chapters
+permalink: /es/beginner/all-chapters/
+lang: es
+category: beginner
+nosearch: true
+---
+{% for post in site.categories.[page.category]%}
+  {% if post.lang == page.lang %}{% unless post.hidden %}
+    {{post.content | markdownify}}
+  {% endunless %}{% endif %}
+{% endfor %}

_posts/es/0200-12-21-moving-forward.md

@@ -0,0 +1,85 @@
+---
+layout: doc
+title: Further Reading
+permalink: /es/beginner/moving-forward/
+lang: es
+category: beginner
+---
+
+Further Reading
+===============
+
+If you have made it this far, congratulations! You should have a good
+understanding now of how to make maps with OpenStreetMap. What else can
+you do with OSM? How can you learn more? How can you stay connected to
+the community of mappers?
+
+OpenStreetMap Tools
+-------------------
+
+In this guide we have learned the building blocks of OSM, and the tools
+you need to contribute to the map. But because the data on OSM is open,
+it has encouraged many more projects and tools that allow you to do more
+with the OpenStreetMap map.
+
+MapOSMatic
+----------
+
+One such project is called MapOSMatic, which you can access through your
+internet browser at [maposmatic.org](http://www.maposmatic.org/). This
+is a simple tool for printing a map of any area you choose. It will
+automatically create the map, along with a grid over the map, and an
+index of locations that are included in the area.
+
+Learn More
+----------
+
+There is a lot of information about OpenStreetMap available at
+[wiki.openstreetmap.org](http://wiki.openstreetmap.org/). Here you can
+find information about other projects that are related to OpenStreetMap,
+and documents and tutorials that can help you learn more about OSM.
+
+Mailing List
+------------
+
+The best way to get connected to the OpenStreetMap user community is to
+join your local mailing list. Many people sign up, using their email
+accounts to the OSM mailing list. Once you are on the list, you can send
+an email to the group if you have a question or want to talk about
+OpenStreetMap.
+
+-   To sign up for your country's mailing list, open your internet
+    browser and go to
+    [lists.openstreetmap.org](http://lists.openstreetmap.org/).
+
+-   Scroll down the page to find the list associated with your country.
+    The country lists are named "Talk-lg", where lg represents the
+    country of that list. For example, "Talk-id" is the list for
+    Indonesia.
+-   Click on the list you want to join.
+-   Enter the following information in the boxes on this page:
+
+    -   your email address
+    -   your first name
+    -   a new password
+    -   repeat the password
+
+-   When you are finished, click Subscribe.
+-   Now you need to open your email, just as you did when you signed up
+    for OpenStreetMap in chapter 2. There will be a confirmation email
+    in your inbox from the mailing list.
+-   Click on the confirmation link, which looks like this:
+
+-   You should now be a member of the mailing list.
+-   Now when you want to send a message to the list, you can send it to
+    [[email protected]](mailto:[email protected]),
+    replacing "id" with the country for your list. You will also receive
+    emails when other members send a message to the list.
+
+Summary
+-------
+
+These are some of the ways that you can use and stay connected with the
+OpenStreetMap community and learn more. We hope you'll continue
+exploring and learning more about OSM, and contribute to the project.
+Happy Mapping!

_posts/es/0200-12-22-arerial-imagery-considerations.md

@@ -0,0 +1,192 @@
+---
+layout: doc
+title: Using Aerial Imagery
+permalink: /es/beginner/aerial-imagery/
+lang: es
+category: beginner
+---
+
+Using Aerial Imagery
+====================
+
+Tracing over imagery is both an easy and powerful way to contribute to
+OSM. Especially when resolution is high and skies are clear, digitizing
+from satellite imagery can provide the skeleton of OSM maps. This is
+useful because it makes ground-truthing, or gathering attribute data,
+easier for people in the field.
+
+Nonetheless, tracing from imagery requires some precautions so that
+objects are not placed in the wrong location. There are two important
+aspects that must be considered when tracing from imagery:
+
+1.  Resolution: The resolution refers to the detail of imagery or the
+    number of pixels from which the image is comprised. A pixel is the
+    smallest unit of an image. The smaller the area of the pixel the
+    better the resolution. With smaller pixels you are able to
+    distinguish between between objects on earth better, as evidenced by
+    the figure below. On the left is an image with low resolution, and
+    less pixels per image. It is hard to distinguish the puzzle piece
+    because a majority of the image is considered part of the puzzle
+    piece. On the other hand, the image on the right with high
+    resolution has smaller pixel units and therefore enables the puzzle
+    piece to be much
+    more distinguishable. In OSM, you are most likely to be able to use
+    imagery is high resolution. Satellite civil imagery offers
+    resolution under “1 meter”, which means each pixel of the imagery
+    represents a one meter squared. That is pretty good!
+
+    ![puzzle][]
+
+2.  Georeference: The georeference is a term for how the imagery was
+    set, or essentially how close the imagery’s pixels represent the
+    actual locations on the ground. This a relatively complex process,
+    and the greater the terrain variation and relief, the harder the
+    georeferencing. Satellites are hundreds of kilometers from the
+    surface of the earth and when they take flat pictures to represent
+    the curved earth there is bound to be some distortion and offset.
+    The existence of offsets is shown slightly when you move between two
+    images covering the same area, e.g. when you zoom in and the former
+    displayed layer replaces another one with better resolution. Can you
+    see shifts in the objects displayed in the imagery?
+
+To get an idea of why the offset occurs image taking a picture of a
+statue and printing it. Now try to deform and stretch it so that it
+mimics the shape of the statue. This is what occurs when georeferencing
+imagery.
+
+Fortunately, satellites are progressively being built with greater
+imagery precision and therefore extremely accurate resolution (the unit
+is often in centimeters). On the other hand, the georeferences of
+satellites is still off, for which the unit remains over a meter. A 5-10
+m georeference is considered good.
+
+When you are trying to accurately map an area based on satellite
+imagery, keep in mind that high resolution imagery is not the only
+aspect that permits good location. Almost all objects in the image are
+offset from the ground location.
+
+There are ways that you can minimize the imprecision of the imagery
+offset. You will be exposed to two main scenarios and methods for
+overcoming imagery offset:
+
+1. you want to trace over imagery in an area that has already been
+mapped in OSM
+
+2. you want to trace over an imagery in an area where there is no
+existing data in OSM
+
+Offsets with existing data in OSM
+---------------------------------
+
+Sometimes after downloading OSM data, adding the imagery, and zooming
+into the best resolution, you realize that the existing OSM data,
+especially roads, does not correctly overlay the imagery objects.
+
+![existing data][]
+
+Many OSM beginners believe that the roads have been traced incorrectly
+and thus move the roads to what appear to be the better location. Moving
+the road may be completely __WRONG__! There is a potential that the
+imagery is poorly aligned in comparison to the reality in the field.
+
+A way to check or prove that the imagery is offset is through using GPS
+tracks. To do so, add __existing GPS tracks__(yours or
+other peoples-- more information on how to do this can be found in
+[Adding](https://docs.google.com/a/engelsted.co/document/d/1jjlthSuc9yltWxQDKxeQD4OO9LvH_DaGwEsdlxSE6l8/edit)[](https://docs.google.com/a/engelsted.co/document/d/1jjlthSuc9yltWxQDKxeQD4OO9LvH_DaGwEsdlxSE6l8/edit)[GPS](https://docs.google.com/a/engelsted.co/document/d/1jjlthSuc9yltWxQDKxeQD4OO9LvH_DaGwEsdlxSE6l8/edit)[](https://docs.google.com/a/engelsted.co/document/d/1jjlthSuc9yltWxQDKxeQD4OO9LvH_DaGwEsdlxSE6l8/edit)[Data](https://docs.google.com/a/engelsted.co/document/d/1jjlthSuc9yltWxQDKxeQD4OO9LvH_DaGwEsdlxSE6l8/edit)[](https://docs.google.com/a/engelsted.co/document/d/1jjlthSuc9yltWxQDKxeQD4OO9LvH_DaGwEsdlxSE6l8/edit)[to](https://docs.google.com/a/engelsted.co/document/d/1jjlthSuc9yltWxQDKxeQD4OO9LvH_DaGwEsdlxSE6l8/edit)[](https://docs.google.com/a/engelsted.co/document/d/1jjlthSuc9yltWxQDKxeQD4OO9LvH_DaGwEsdlxSE6l8/edit)[OSM](https://docs.google.com/a/engelsted.co/document/d/1jjlthSuc9yltWxQDKxeQD4OO9LvH_DaGwEsdlxSE6l8/edit)[](https://docs.google.com/a/engelsted.co/document/d/1jjlthSuc9yltWxQDKxeQD4OO9LvH_DaGwEsdlxSE6l8/edit)[server](https://docs.google.com/a/engelsted.co/document/d/1jjlthSuc9yltWxQDKxeQD4OO9LvH_DaGwEsdlxSE6l8/edit))
+to the area you are tracing. Click on
+![download][] then tick «Raw GPS
+data» near the top in the «Download» window. After downloading, an
+additional layer «Downloaded GPX data» will appear.
+
+![downloaded GPX][]
+
+In this example, with the GPS tracks (in red) added you can see that the
+existing data (here: the roads) is positioned correctly. The imagery is
+actually not correctly georeferenced, and has an offset in comparison
+with the reality. It has to be adjusted.
+
+> Do not be confused that the tracks appear like a sequence of
+> lines and not one solid line. Most GPS devices have a 2-5 m accuracy,
+> which is sufficient for roads because you do not drive or walk in the
+> middle of the road. Try to imagine an average GPS trace somewhere in the
+> middle of the existing lines.
+
+To offset imagery, right-click the imagery layer or menu «Imagery», open
+«New offset», or use the imagery adjust button
+![adjust button][] in left toolbar. Then
+drag the imagery so that it is correctly overlaid by the tracks. Click
+on another tool when it is over. Note that for some projects people will
+save offset information to the wiki or other sources so that people
+working together on areas can share common values. You can also give the
+offset a “Bookmark name” if you need to use it again in the future. This
+offset is saved in a new “Imagery offset” menu available from the
+imagery drop-down.
+
+![adjust window][]
+
+![downloaded GPX][]
+
+Now that the imagery is adjusted you can trace over it. While mapping
+you can hide layer «Downloaded GPX data» if it interferes with your
+work.
+
+![adding to existing data][]
+
+One last thing to remember: the offset might not be the same over the
+extent of the imagery! This is especially true in regions with a marked
+relief. So when the imagery seems to be offset again, repeat the whole
+process.
+
+Offsets with no existing data in OSM
+------------------------------------
+
+It may happen that you are the first one to OSM map an area, e.g. in
+remote rural areas or in developing countries. Therefore, neither
+existing OSM data nor GPS tracks can be downloaded.
+
+![no data][]
+
+How can you deal with this since you do not have any reference to
+control the offset of the imagery? There are two ways around this:
+
+1.  Go into the field: If you have the possibility to use a GPS in the
+    area, take waypoints on significant infrastructure or objects that
+    will are visible on the imagery and/or make tracks of the roads,
+    then add them in JOSM.
+
+2.  Use existing data: If you cannot go into the field then another
+    option is to gather other __Open Database License data (ODbl)__
+    If you can it is best to check the imagery with another image that
+    is correctly aligned. If you are offsetting an image based on
+    another one, using transparency is the easiest way. To do this,
+    simply click the gradient line and change the opacity of the layer.
+
+    ![change opacity][]
+
+Usually administration imagery has poor resolution, over ten meters of
+resolution, and so might be worst than the previous image.
+
+If you have access to vector data, roads, lakes, rivers and buildings
+are your best options for determining how offset your imagery is. Try to
+stay away from boundary lines because those are not reliable for
+figuring out if imagery is misaligned.
+
+Summary
+-------
+
+Tracing imagery is a technique that makes mapping in OSM faster and more
+efficient. However, it must be done with precision and care. There are
+times when you are digitizing an area and the imagery itself may be off.
+Whether it be through poor resolution or poorly georeferenced imagery,
+there are ways you can deal with inaccurate imagery. They mainly involve
+referencing imagery with GPS traces and tracks.
+
+[puzzle]: {{site.baseurl}}/images/offset_puzzle_en.png
+[existing data]: {{site.baseurl}}/images/offset_existing_data_en.png
+[download]: {{site.baseurl}}/images/offset_tool_download_en.png
+[downloaded GPX]: {{site.baseurl}}/images/offset_downloaded_gpx_en.png
+[adjust button]: {{site.baseurl}}/images/offset_tool_adjust_en.png
+[adjust window]: {{site.baseurl}}/images/offset_adjust_window_en.png
+[adding to existing data]: {{site.baseurl}}/images/offset_add_to_data_en.png
+[no data]: {{site.baseurl}}/images/offset_no_data_en.png
+[change opacity]: {{site.baseurl}}/images/offset_change_opacity_en.png