{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "# Setting up your simulation\n", "\n" ] }, { "cell_type": "code", "execution_count": 11, "metadata": {}, "outputs": [], "source": [ "from dotter.models import DotterModel\n", "%matplotlib notebook" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "All parameters, geometry and boundary conditions are saved in configuration files. Three files are always required:\n", "\n", "- the main configuration file (here: config.ini)\n", "- the geometry file (here: stream.xlsx)\n", "- the measurements file (here: measurements.csv)\n", "\n", "Other files are optional and not used in this notebook:\n", "\n", "- vegetation configuration file\n", "- events configuration file\n", "- lateral input file\n", "\n", "## Loading a model\n", "\n", "First, we load the example configuration files. This is done by initialising a `DotterModel` object with the path to the main configuration file:" ] }, { "cell_type": "code", "execution_count": 2, "metadata": {}, "outputs": [], "source": [ "stream = DotterModel('config/basic_config.ini', loggerlevel='silent')" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "## Inspecting model parameters \n", "\n", "The parameters of the simulation were specified in the configuration file. They can be retrieved from the stream object:" ] }, { "cell_type": "code", "execution_count": 3, "metadata": {}, "outputs": [ { "data": { "text/plain": [ "Parameters(g=9.81, dx=40, dt=2, tstart=datetime.datetime(2016, 1, 1, 0, 0), tstop=datetime.datetime(2016, 12, 31, 0, 0), geometrytype=1, frictionmodel='stationary', growthmodel='logistic', blockagemodel='PitloGriffioenLinear', datetimefmt='%d/%m/%Y')" ] }, "execution_count": 3, "metadata": {}, "output_type": "execute_result" } ], "source": [ "stream.parameters" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "The parameter `tstart` and `tstop` indicate the start and stop time of the simulation. In this case, the simulation span is:" ] }, { "cell_type": "code", "execution_count": 4, "metadata": {}, "outputs": [ { "data": { "text/plain": [ "'365 days, 0:00:00'" ] }, "execution_count": 4, "metadata": {}, "output_type": "execute_result" } ], "source": [ "str(stream.parameters.tstop - stream.parameters.tstart)" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "The parameter `dt` specified the timestep in days. Therefore, the number of steps the model will take is:" ] }, { "cell_type": "code", "execution_count": 5, "metadata": {}, "outputs": [ { "data": { "text/plain": [ "182.5" ] }, "execution_count": 5, "metadata": {}, "output_type": "execute_result" } ], "source": [ "(stream.parameters.tstop - stream.parameters.tstart).days / stream.parameters.dt" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "The `DotterModel.parameters.frictionmodel` variable specifies how friction will behave over time. By default, the model uses the Manning model to resolve hydraulic resistance. It the variable is `stationary` the Manning coefficient will remain constant over time. However, a non-uniform (varying along the stream) friction can be given in the geometry configuration file. To inspect the friction, type:" ] }, { "cell_type": "code", "execution_count": 6, "metadata": {}, "outputs": [ { "data": { "text/html": [ "
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2016-11-020.10.10.10.10.10.10.10.10.10.1...0.10.10.10.10.10.10.10.10.10.1
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2016-11-120.10.10.10.10.10.10.10.10.10.1...0.10.10.10.10.10.10.10.10.10.1
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2016-11-160.10.10.10.10.10.10.10.10.10.1...0.10.10.10.10.10.10.10.10.10.1
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2016-11-220.10.10.10.10.10.10.10.10.10.1...0.10.10.10.10.10.10.10.10.10.1
2016-11-240.10.10.10.10.10.10.10.10.10.1...0.10.10.10.10.10.10.10.10.10.1
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2016-11-300.10.10.10.10.10.10.10.10.10.1...0.10.10.10.10.10.10.10.10.10.1
2016-12-020.10.10.10.10.10.10.10.10.10.1...0.10.10.10.10.10.10.10.10.10.1
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2016-12-060.10.10.10.10.10.10.10.10.10.1...0.10.10.10.10.10.10.10.10.10.1
2016-12-080.10.10.10.10.10.10.10.10.10.1...0.10.10.10.10.10.10.10.10.10.1
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2016-12-120.10.10.10.10.10.10.10.10.10.1...0.10.10.10.10.10.10.10.10.10.1
2016-12-140.10.10.10.10.10.10.10.10.10.1...0.10.10.10.10.10.10.10.10.10.1
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"2016-12-10 0.1 0.1 0.1 0.1 0.1 \n", "2016-12-12 0.1 0.1 0.1 0.1 0.1 \n", "2016-12-14 0.1 0.1 0.1 0.1 0.1 \n", "2016-12-16 0.1 0.1 0.1 0.1 0.1 \n", "2016-12-18 0.1 0.1 0.1 0.1 0.1 \n", "2016-12-20 0.1 0.1 0.1 0.1 0.1 \n", "2016-12-22 0.1 0.1 0.1 0.1 0.1 \n", "2016-12-24 0.1 0.1 0.1 0.1 0.1 \n", "2016-12-26 0.1 0.1 0.1 0.1 0.1 \n", "2016-12-28 0.1 0.1 0.1 0.1 0.1 \n", "2016-12-30 0.1 0.1 0.1 0.1 0.1 \n", "\n", "[183 rows x 83 columns]" ] }, "execution_count": 6, "metadata": {}, "output_type": "execute_result" } ], "source": [ "stream.grid.friction" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "In this case, we see that the model has a constant manning coefficient of 0.1 everywhere. This table is a Pandas Dataframe. You can export it at any time using `pandas.DataFrame` methods. \n", "\n", "To visually inspect the model geometry and boundary conditions, use the `DotterModel.dash` method:" ] }, { "cell_type": "code", "execution_count": 13, "metadata": {}, "outputs": [ { "data": { "application/javascript": [ "/* Put everything inside the global mpl namespace */\n", "window.mpl = {};\n", "\n", "\n", "mpl.get_websocket_type = function() {\n", " if (typeof(WebSocket) !== 'undefined') {\n", " return WebSocket;\n", " } else if (typeof(MozWebSocket) !== 'undefined') {\n", " return MozWebSocket;\n", " } else {\n", " alert('Your browser does not have WebSocket support.' +\n", " 'Please try Chrome, Safari or Firefox ≥ 6. 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