tag:blogger.com,1999:blog-9851542370172334462024-03-14T02:50:58.666-04:00GIS Fun with AnnaTo apply a better understanding of GIS to my portfolio of expertise.
...and get a great jobAnnahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.comBlogger40125tag:blogger.com,1999:blog-985154237017233446.post-69422691059480981492008-04-28T15:32:00.005-04:002008-04-28T15:42:02.040-04:00Module 9 spatial analystThis was a difficult one for me. I learned that spatial analyst works really well with raster data to show and analyze data sets. You can create hillshades, slopes, and wieght the importants of the data that you are looking at to calculate new information<br /><br />It's an awesome toolAnnahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-20761658546625087372008-04-28T15:30:00.002-04:002008-04-28T15:32:09.333-04:00Module 9<a href="http://3.bp.blogspot.com/_oQD9vnQdNys/SBYmJRRZcWI/AAAAAAAAAEw/2M0Y6dtA2AY/s1600-h/TearPiece2.jpg"><img style="float:left; margin:0 10px 10px 0;cursor:pointer; cursor:hand;" src="http://3.bp.blogspot.com/_oQD9vnQdNys/SBYmJRRZcWI/AAAAAAAAAEw/2M0Y6dtA2AY/s320/TearPiece2.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5194381160915497314" /></a>Annahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-22291577093260564942008-04-23T15:39:00.003-04:002008-04-23T15:40:34.150-04:00Module 10 Hillshade<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://2.bp.blogspot.com/_oQD9vnQdNys/SA-QoxRZcVI/AAAAAAAAAEo/sJuiBs5qsbg/s1600-h/Hillshade.jpg"><img style="float:left; margin:0 10px 10px 0;cursor:pointer; cursor:hand;" src="http://2.bp.blogspot.com/_oQD9vnQdNys/SA-QoxRZcVI/AAAAAAAAAEo/sJuiBs5qsbg/s320/Hillshade.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5192527925476946258" /></a>Annahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-8486333384054298302008-04-23T15:39:00.001-04:002008-04-23T15:39:52.910-04:00Module 10 Slope<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://2.bp.blogspot.com/_oQD9vnQdNys/SA-QfxRZcUI/AAAAAAAAAEg/ckSIDI8R6Ms/s1600-h/Slope.jpg"><img style="float:left; margin:0 10px 10px 0;cursor:pointer; cursor:hand;" src="http://2.bp.blogspot.com/_oQD9vnQdNys/SA-QfxRZcUI/AAAAAAAAAEg/ckSIDI8R6Ms/s320/Slope.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5192527770858123586" /></a>Annahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-87148642774831987182008-04-23T15:35:00.002-04:002008-04-23T15:39:14.035-04:00Module 10 AspectUsing the spatial analyst add on, I took a DEM (Digital Elevation Model) of Haywood County and I added the aspect, or direction of the slope to the model. I simplified the slope in this case to North and south slopes to make it a little bit easier to read.Annahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-35970920742867621212008-04-23T15:34:00.001-04:002008-04-23T15:35:43.870-04:00Module 10 Aspect<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://4.bp.blogspot.com/_oQD9vnQdNys/SA-PfRRZcTI/AAAAAAAAAEY/WhFjGrRUkdo/s1600-h/Aspect.jpg"><img style="float:left; margin:0 10px 10px 0;cursor:pointer; cursor:hand;" src="http://4.bp.blogspot.com/_oQD9vnQdNys/SA-PfRRZcTI/AAAAAAAAAEY/WhFjGrRUkdo/s320/Aspect.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5192526662756561202" /></a>Annahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-67288152852878529612008-04-23T15:07:00.001-04:002008-04-23T15:09:11.172-04:00Practice Quiz 2I could have taken out the parcel layer on the locater map, but I liked the variation in color, so I kept it. I think it would look good on a blotter.Annahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-9809772403949260252008-04-23T15:02:00.002-04:002008-04-23T15:06:16.978-04:00Practice Quiz 2<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://2.bp.blogspot.com/_oQD9vnQdNys/SA-IPxRZcSI/AAAAAAAAAEQ/tsY3oN3vFLc/s1600-h/MAP28801.jpg"><img style="float:left; margin:0 10px 10px 0;cursor:pointer; cursor:hand;" src="http://2.bp.blogspot.com/_oQD9vnQdNys/SA-IPxRZcSI/AAAAAAAAAEQ/tsY3oN3vFLc/s320/MAP28801.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5192518699887194402" /></a><br /><br /><br />This was a lot of fun, very basic clipping and map makingAnnahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-22745006544578102862008-04-02T16:04:00.001-04:002008-04-02T16:05:09.331-04:00BuffersBuffers: Buffers can be drawn at a constant distance around every feature or at a distance that varies according to attribute values. If features are close together, their buffers may overlap. You can preserve the overlaps or remove them.<br /><br />Note: When using the Dissolve ALL Function with a buffer. Buffers created with the dissolve All option form a single feature called a multi part polygon. AKA the attributes go to the standard 4 objectid, shape, distance, shape lengthAnnahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-34476414883503014922008-04-02T15:12:00.001-04:002008-04-02T15:12:55.928-04:00OverlayOverLay: When you are interested in combining data sets that overlap, overlaying is the key. You can overlay by intersecting, which preserves the area that is common to both data sets. You can also use a union that preserves everything in both areasAnnahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-89087630917261473492008-04-02T15:07:00.003-04:002008-04-02T15:08:04.979-04:00Chapter 11 D<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://3.bp.blogspot.com/_oQD9vnQdNys/R_PZgT0w5WI/AAAAAAAAAEI/DOz0r5siZUs/s1600-h/ex11d.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;" src="http://3.bp.blogspot.com/_oQD9vnQdNys/R_PZgT0w5WI/AAAAAAAAAEI/DOz0r5siZUs/s320/ex11d.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5184726745134196066" /></a>Annahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-14086785740506967822008-04-02T15:06:00.002-04:002008-04-02T15:07:24.512-04:00To Create a New LayerTo Create a New Layer: (you could go to selection menu –Set Selectable Layers, then on the Tools toolbar click the icon to ‘Select Features.’ And click on the one you want, then right click on the layer Selection- create layer from selected features.) TADAAnnahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-12441367072403951222008-04-02T15:06:00.001-04:002008-04-02T15:06:43.627-04:00ClippingClipping: Clipping trims features in one layer at the boundaries of features in another layer. This lets you work with layers that have a common spatial extent, making it easier to navigate a map.<br />To Clip a spatial attribute based within a layer you must select that attribute. I first created a new layer.<br />To Create a New Layer: (you could go to selection menu –Set Selectable Layers, then on the Tools toolbar click the icon to ‘Select Features.’ And click on the one you want, then right click on the layer Selection- create layer from selected features.) TADA<br />Then go to Arc Toolbox - Extract –Clip – Remember you are Clipping one layer based on another, the input is the layer that will be changed based on the output layer TADAAnnahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-8822288521103858442008-04-02T15:05:00.000-04:002008-04-02T15:06:09.716-04:00Chapter 11C<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://4.bp.blogspot.com/_oQD9vnQdNys/R_PY-j0w5VI/AAAAAAAAAEA/cJry8Fepzzs/s1600-h/ex11c.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;" src="http://4.bp.blogspot.com/_oQD9vnQdNys/R_PY-j0w5VI/AAAAAAAAAEA/cJry8Fepzzs/s320/ex11c.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5184726165313611090" /></a><br /><br />TADA These are my two appended layersAnnahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-68375116083266408922008-04-02T14:29:00.000-04:002008-04-02T14:30:08.643-04:00Chapter 11B<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://1.bp.blogspot.com/_oQD9vnQdNys/R_PQnz0w5UI/AAAAAAAAAD4/vFGPHlxiwNw/s1600-h/ex11b.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;" src="http://1.bp.blogspot.com/_oQD9vnQdNys/R_PQnz0w5UI/AAAAAAAAAD4/vFGPHlxiwNw/s320/ex11b.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5184716978378564930" /></a>Annahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-61575683202022755132008-04-02T14:28:00.000-04:002008-04-02T14:29:18.788-04:00DissolveDissolve: A dissolve creates a new data set where features in an input table that have the same value for a specified attribute become a specified feature. <br />Go to: Arc Toolbox – Generalization – Dissolve – Input Features (the input layer to Dissolve) Then select the attribute you would like to aggregateAnnahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-42062251791320929422008-04-02T14:25:00.002-04:002008-04-02T14:28:21.394-04:00Chapter 11A<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://2.bp.blogspot.com/_oQD9vnQdNys/R_PP4D0w5TI/AAAAAAAAADw/LgF3QBw91j4/s1600-h/ex11a.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;" src="http://2.bp.blogspot.com/_oQD9vnQdNys/R_PP4D0w5TI/AAAAAAAAADw/LgF3QBw91j4/s320/ex11a.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5184716158039811378" /></a><br /><br /><br />Using a dissolve I combined data based on similar attributesAnnahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-54378401420240334752008-04-02T14:13:00.005-04:002008-04-02T14:25:16.378-04:00Module 6 Part Duo<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://4.bp.blogspot.com/_oQD9vnQdNys/R_PM9j0w5SI/AAAAAAAAADo/z5yAEJLYeZY/s1600-h/georefrencedtearpiece2.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;" src="http://4.bp.blogspot.com/_oQD9vnQdNys/R_PM9j0w5SI/AAAAAAAAADo/z5yAEJLYeZY/s320/georefrencedtearpiece2.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5184712953994208546" /></a><br /><br />I thought this moment would never come. It's amazing how much time goes into making the data. It takes a special person.Annahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-28036416372524762942008-04-02T12:29:00.002-04:002008-04-02T12:30:24.804-04:00Module 6 Georeferencing and snappingSnapping (here we are making a vector layer of trail data)<br />Are you still with me? Ok, so snapping is a great way to georeference. So, you have your known and unknown data, right? Using the editing tool bar click the drop down to ‘start editing’note: you can only edit one data frame so if given the choice click on the one you want to edit. Using the same drop down set your ‘snapping,’ click on what you want to snap, in our case it is roads and trails. Now you want to use the edit tool to (Task) create a new feature in this case, and here we are tracing along the lines of the trails- The goal here is to make a vector layer of trail data. You can double click when you're finished and the feature will highlight. Then you can go into the attribute table and add data.<br />Trace tool Will allow you to trace along a feature that is highlighted, exactly copying it<br />How to highlight a feature click on it with your edit toolAnnahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-85225167112251086322008-04-02T12:03:00.005-04:002008-04-02T12:34:07.048-04:00Module 6 Part 2 GeoreferencingGeoreferencing Part 2<br />What kind of coordinate system, what is the map projection, what spatial reference that our data is in? Go to Arc Catalog- file folder- metadata<br />Or Contents – right click properties- XY Coordinate System You can check out the projection.<br />Now that the trail map has been georeferenced, the next step is to use it to create a vector layer of the trails complete with attribute information.<br />So we go to the Bent Creek Folder and Right Click New- New File Geodatabase <br />Then we need to create a new feature class for the database so we right click on the geodatabase create a new feature class. Here you specify what kind of coordinate system your data is going to be in.Annahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-15509978041320372462008-03-31T13:51:00.003-04:002008-03-31T13:53:36.645-04:00Georeferencing Part 1<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="http://1.bp.blogspot.com/_oQD9vnQdNys/R_ElET0w5RI/AAAAAAAAADg/X4SWTsKMSBM/s1600-h/georefrenced.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;" src="http://1.bp.blogspot.com/_oQD9vnQdNys/R_ElET0w5RI/AAAAAAAAADg/X4SWTsKMSBM/s320/georefrenced.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5183965402051437842" /></a>Annahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-13970401632651038062008-03-31T13:50:00.001-04:002008-04-02T12:33:38.374-04:00Georeferencing Part 1Georeferencing Part 1<br />Using the View drop down and going to Toolbars- Georeferencing toolbar. This allows us to assign real world coordinates to our raster data, to a image that does not have real world coordinates, using control points. <br />Starting in the display window layer of our real world coordinates we ‘fit to display’ our new data to display an overlap. Here we can reference non real world to real world starting with the unknown using control points. You have to use more control points if your map is not very accurate.<br />We create a world file by Updating GeoreferencingAnnahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-32860793838770103562008-03-19T15:40:00.003-04:002008-03-19T15:45:42.072-04:00Chapter 10<a href="http://2.bp.blogspot.com/_oQD9vnQdNys/R-FtXi9wMcI/AAAAAAAAADY/5C-Mo4D9ds4/s1600-h/ex10b.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;" src="http://2.bp.blogspot.com/_oQD9vnQdNys/R-FtXi9wMcI/AAAAAAAAADY/5C-Mo4D9ds4/s320/ex10b.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5179541297743016386" /></a><br /><a href="http://2.bp.blogspot.com/_oQD9vnQdNys/R-FtLi9wMbI/AAAAAAAAADQ/VqZeGQdk2Ss/s1600-h/ex10a.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;" src="http://2.bp.blogspot.com/_oQD9vnQdNys/R-FtLi9wMbI/AAAAAAAAADQ/VqZeGQdk2Ss/s320/ex10a.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5179541091584586162" /></a><br />Here I am selection attributes by location, looking for the best spot to place my client's new business. We want it to be close to a business center, and because it's a pricey shop we need it to be in an area with a high density of people with a alot of money. The second picture showsthe final location chosen.Annahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com1tag:blogger.com,1999:blog-985154237017233446.post-40068699458980889392008-03-19T15:33:00.002-04:002008-03-19T15:40:08.128-04:00Chapter 9<a href="http://4.bp.blogspot.com/_oQD9vnQdNys/R-FsAC9wMaI/AAAAAAAAADI/E6_qUy44now/s1600-h/ex09a.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;" src="http://4.bp.blogspot.com/_oQD9vnQdNys/R-FsAC9wMaI/AAAAAAAAADI/E6_qUy44now/s320/ex09a.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5179539794504462754" /></a><br />This map focuses on abandoned pit mines that have high concentrations of heavy metals that could cause concerns about safety. I have identifies these sites based on the actoin required to clean the sites. I have used a 'join' based on the common attribute feild of IDNumber to add more data.Annahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0tag:blogger.com,1999:blog-985154237017233446.post-22082092937760474412008-03-19T15:24:00.005-04:002008-03-19T15:33:20.939-04:00Chapter 8<a href="http://2.bp.blogspot.com/_oQD9vnQdNys/R-Fp6i9wMZI/AAAAAAAAADA/Mz1LxGgcObA/s1600-h/ex08b.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;" src="http://2.bp.blogspot.com/_oQD9vnQdNys/R-Fp6i9wMZI/AAAAAAAAADA/Mz1LxGgcObA/s320/ex08b.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5179537500991926674" /></a><br /><a href="http://4.bp.blogspot.com/_oQD9vnQdNys/R-Fp3C9wMYI/AAAAAAAAAC4/dgjWQDewEBc/s1600-h/ex08a.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;" src="http://4.bp.blogspot.com/_oQD9vnQdNys/R-Fp3C9wMYI/AAAAAAAAAC4/dgjWQDewEBc/s320/ex08a.jpg" border="0" alt=""id="BLOGGER_PHOTO_ID_5179537440862384514" /></a><br /><br />This was an introduction to selecting by attributes, it's some pretty interesting stuff. So, you are working with a client who is interested in three bedroom houses that are for sale on corner plots. One of the pictures shows all the plots that are for sale selected using a select by location status = y Yes they are for saleAnnahttp://www.blogger.com/profile/00183256076351944845noreply@blogger.com0