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--- geoinfo:topics:vetera:start [2018/12/04 23:00] – admin
+++ geoinfo:topics:vetera:start [2020/12/03 23:21] (current) – [Useful Files and Links] rolf
@@ Line 15: / Line 15: @@
 |  **Roman Settlements in Modern Xanten Area**  |
 |  {{http://intarch.ac.uk/journal/issue17/4/images/fig12.jpg?400}}  |
-| Medieval Xanten, Colonia Ulpia Traiania and Vetera I (by P. A. Faulkner). \\ Source: http://intarch.ac.uk/journal/issue17/4/4.html |
+| Fig. 1.1: Medieval Xanten, Colonia Ulpia Traiania and Vetera I (by P. A. Faulkner). \\ Source: http://intarch.ac.uk/journal/issue17/4/4.html |
 |  **Castra Vetera I and Colonia Ulpia Traiana**  ||
-|  {{http://www.zeitreise-ruhr.de/chronik/gfx/cut_cp.jpg}}  |  {{http://www.zeitreise-ruhr.de/chronik/gfx/legionslager_vetera_castra_I_ap.jpg}}  |
+|  {{:geoinfo:topics:vetera:cut_cp.jpg}}  |  {{:geoinfo:topics:vetera:legionslager_vetera_castra_I_ap.jpg}}  |
-| Colonia Ulpia Traiana (by [[http://www.informationsmedien.com/|Dießenbacher Informationsmedien]]). \\ Source: http://www.zeitreise-ruhr.de/chronik/060-roemerundgermanen.html  | Castra Vetera I (by [[http://www.informationsmedien.com/|Dießenbacher Informationsmedien]]). \\ Source: http://www.zeitreise-ruhr.de/chronik/060-roemerundgermanen.html |
+| Fig. 2.1: Colonia Ulpia Traiana (by [[http://www.informationsmedien.com/|Dießenbacher Informationsmedien]]). \\ Source: http://www.zeitreise-ruhr.de/chronik/060-roemerundgermanen.html  | Fig. 2.2: Castra Vetera I (by [[http://www.informationsmedien.com/|Dießenbacher Informationsmedien]]). \\ Source: http://www.zeitreise-ruhr.de/chronik/060-roemerundgermanen.html |
-|  {{ :geoinfo:topics:vetera:g.jpg }}  |  {{ :geoinfo:topics:vetera:a.jpg}}  |
+|  {{:geoinfo:topics:vetera:g.jpg }}  |  {{:geoinfo:topics:vetera:a.jpg}}  |
-| Vetera I, secured ground plan (by [[http://www.informationsmedien.com/|Dießenbacher Informationsmedien]]) | Vetera I, reconstruction (by [[http://www.informationsmedien.com/|Dießenbacher Informationsmedien]]) |
+| Fig. 2.3: Vetera I, secured ground plan (by [[http://www.informationsmedien.com/|Dießenbacher Informationsmedien]]) | Fig. 2.4: Vetera I, reconstruction (by [[http://www.informationsmedien.com/|Dießenbacher Informationsmedien]]) |
-|  {{http://intarch.ac.uk/journal/issue17/4/images/fig13.jpg}}  |  {{ :geoinfo:topics:vetera:15338bd31ed.jpg |}}  |
+|  {{http://intarch.ac.uk/journal/issue17/4/images/fig13.jpg}}  |  {{:geoinfo:topics:vetera:15338bd31ed.jpg}}  |
-| Vetera I, Neronian fort, showing building numbers, kilns and fortifications of earlier forts (by P. A. Faulkner). \\ Source and Legend: http://intarch.ac.uk/journal/issue17/4/4.html | Source: http://www.roemisches-rheinland.com/Wissen/Festes-Lager |
+| Fig. 2.5: Vetera I, Neronian fort, showing building numbers, kilns and fortifications of earlier forts (by P. A. Faulkner). \\ Source and Legend: http://intarch.ac.uk/journal/issue17/4/4.html | Fig. 2.6: Source: http://www.roemisches-rheinland.com/Wissen/Festes-Lager |
@@ Line 57: / Line 57: @@
 /* https://moodle.hochschule-rhein-waal.de/draftfile.php/3736/user/draft/187753258/Photo_DTK25_4304_Xanten_1998_Detail_Fuerstenberg.jpg */
-=== Tasks ===
+=== Subtask 1 ===
-) Use the georeference tool to align the photographed map above with a current digital topographic map form open data NRW.
+Import the Web Mapping Services WMS of NRW into QGIS and use the official topograhic maps (TK... and Grundkarte) therein as a reference for the following tasks. To do so follow the instructions at [[geoinfo:topics:Open Data NRW:start]].
+=== Subtask 2 ===
-Perform a non-linear transformation to georeference the map photo
+Use the georeference tool **georeferencer** to align the photographed map above with a current digital topographic map form open data NRW. Perform a non-linear transformation to georeference the map photo.
 To georeference (= transform, correct) the photo I have taken from the topographic map a "Linear Transformation" is not appropriate. The image is mainly rotated (a non-linear transformation) and (linearly) distorted by perspective. The photo has not been taken perfectly orthogonally to the map plane. The transformation "Thin Plate Spline" does a good job. I cannot explain for now what it exactly is. The screenshot below shows the satisfying result after the non-linear transformation to correct the image. The locally different transformation of the image (dependent on the location on the image) are obvious. I do not know yet how to handle the black background of the rotated image on the vertically aligned rectangular canvas.
-{{:geoinfo:topics:vetera:georef_topo_screenshot_thin_plate_spline.jpg}}
+{{:geoinfo:topics:vetera:georef_topo_screenshot_thin_plate_spline.jpg?direct}}
+=== Subtask 3 ===
+Use the georeferenced topographic map from 1998 to georeference the Vetera I reconstruction by Dießenbacher shown in Fig. 2.4.
+Overlay these georeferenced maps / images on top of the DTM you created earlier (the geoTiff files generated from xyz). Is the reconstruction plausible?
@@ Line 77: / Line 85: @@
 | Fig. 1: The gate of the Neronian encampment. | Fig.2: “Streifenhäuser” along the east leading road. | Fig. 3: Traces of the eastern breastwork of the camp. |
 |  Source:  Baoquan Song (Ruhr-Uni Bochum), Norbert Hanel (Uni Köln): \\ http://www.ruhr-uni-bochum.de/archaeologie/forschung/projekte/luftbildxanten.html.en  |||
+=== Subtask 1 ===
 Where are these features located on the Fürstenberg? Try to georeference them.
+=== Subtask 2 ===
+Map them in the context of the georeferenced topographic map you created before and the georeferenced Castra Vetera I model by Dießenbacher.
+How does the information fit together?
+===== More on History =====
-===== Useful Files and Links  =====
-==== 1) Revolt of the Batavi ====
-https://en.wikipedia.org/wiki/Revolt_of_the_Batavi
+  * [[https://en.wikipedia.org/wiki/Revolt_of_the_Batavi|Revolt of the Batavi]] (Wikipedia)
+  * [[http://www.zeitreise-ruhr.de/chronik/060-roemerundgermanen.html|Conquest of Germania esp. Lower Rhine Area]] (Zeitreise Ruhr)