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annotate client/src/components/TimeSlider.vue @ 5041:abe9b75686ba time-sliding

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client: set wheeldelta to facilitate quick changes of zoomlevel
author Fadi Abbud <fadi.abbud@intevation.de>
date Fri, 28 Feb 2020 12:55:24 +0100
parents 066b76ef5e6a
children bae2548dc484
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1 <template>
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2 <div
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3 id="slider"
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4 :class="[
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5 'd-flex box ui-element rounded bg-white flex-row',
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6 { expanded: showTimeSlider }
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7 ]"
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8 >
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9 <div class="d-flex m-1">
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10 <input
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11 class="form-control form-control-sm"
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12 type="date"
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13 v-model="timeSelection"
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14 min="2015-01-01"
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15 max="2020-03-01"
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16 />
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17 </div>
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18 <div
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19 id="sliderContainer"
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20 class="d-flex sliderContainer"
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21 style="width: 98%;"
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22 ></div>
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23 <div @click="close" class="d-flex box-control mr-0" style="width: 2%;">
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24 <font-awesome-icon icon="times"></font-awesome-icon>
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25 </div>
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26 </div>
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27 </template>
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28 <style lang="sass" scoped>
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29 #slider
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30 position: absolute
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31 bottom: 0
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32 min-width: 100vw;
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33 &.expanded
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34 max-height: 100%;
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35 max-width: 100%;
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36 margin: 0
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37 </style>
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38 <script>
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39 /* This is Free Software under GNU Affero General Public License v >= 3.0
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40 * without warranty, see README.md and license for details.
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41 *
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42 * SPDX-License-Identifier: AGPL-3.0-or-later
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43 * License-Filename: LICENSES/AGPL-3.0.txt
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44 *
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45 * Copyright (C) 2020 by via donau
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46 * – Österreichische Wasserstraßen-Gesellschaft mbH
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47 * Software engineering by Intevation GmbH
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48 *
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49 * Author(s):
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50 * Fadi Abbud <fadiabbud@intevation.de>
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51 */
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52 import { mapState } from "vuex";
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53 import * as d3 from "d3";
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54 let zoom = null;
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55 export default {
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56 name: "timeslider",
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57 data() {
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58 return {
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59 newX: null
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60 };
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61 },
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62 watch: {
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63 ongoingRefresh() {
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64 if (this.ongoingRefresh) return;
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65 this.$store.commit("application/setSelectedTime", new Date());
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66 this.$nextTick(this.redrawSlider);
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67 }
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68 },
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69 computed: {
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70 ...mapState("application", ["showTimeSlider"]),
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71 ...mapState("map", ["ongoingRefresh"]),
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72 timeSelection: {
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73 get() {
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74 const date = this.$store.state.application.selectedTime;
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75 return date.toISOString().split("T")[0];
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76 },
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77 set(value) {
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78 const date = new Date(value);
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79 this.$store.commit("application/setSelectedTime", date);
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80 this.$nextTick(this.redrawSlider);
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81 }
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82 },
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83 selectedTime: {
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84 get() {
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85 return this.$store.state.application.selectedTime;
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86 },
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87 set(value) {
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88 this.$store.commit("application/setSelectedTime", value);
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89 }
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90 }
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91 },
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92 methods: {
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93 close() {
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94 this.$store.commit("application/showTimeSlider", false);
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95 },
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96 redrawSlider() {
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97 this.createSlider();
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98 zoom.translateTo(
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99 d3.select(".line"),
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100 this.newX(d3.isoParse(this.selectedTime.toISOString())),
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101 1
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102 );
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103 },
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104 createSlider() {
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105 const element = document.getElementById("sliderContainer");
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106 const svgWidth = element ? element.clientWidth : 0,
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107 svgHeight = 40,
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108 marginTop = 20,
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109 marginLeft = 0;
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110
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111 this.newX = this.getScale();
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112 d3.select(".sliderContainer svg").remove();
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113 let svg = d3
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114 .select(".sliderContainer")
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115 .append("svg")
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116 .attr("width", svgWidth)
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117 .attr("height", svgHeight);
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118
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119 const wheelDelta = () => {
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120 return (-d3.event.deltaY * (d3.event.deltaMode ? 120 : 1)) / 15;
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121 };
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122 // zoom event
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123 zoom = d3
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124 .zoom()
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125 .scaleExtent([0.8, 102000])
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126 .translateExtent([[0, 0], [svgWidth, svgHeight]])
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127 .extent([[0, 0], [(svgWidth, svgHeight)]])
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128 .on("zoom", this.zoomed);
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129 zoom.wheelDelta(wheelDelta);
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130
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131 svg
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132 .append("g")
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133 .attr("class", "axis--x")
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134 .attr("transform", `translate(${marginLeft}, ${marginTop})`)
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135 .call(
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136 d3.axisBottom(this.newX).ticks(12)
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137 //.tickFormat(dFormat)
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138 );
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139
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140 // create rectanlge on the slider area to capture mouse events
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141 const eventRect = svg
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142 .append("rect")
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Fadi Abbud <fadi.abbud@intevation.de>
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143 .attr("id", "zoom")
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144 .attr("class", "zoom")
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Fadi Abbud <fadi.abbud@intevation.de>
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145 .attr("width", svgWidth)
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Fadi Abbud <fadi.abbud@intevation.de>
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146 .attr("height", svgHeight)
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Fadi Abbud <fadi.abbud@intevation.de>
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147 .attr("fill", "white")
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148 .attr("opacity", 0.2)
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149 .on("mouseover", () => {
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150 svg.select(".zoom").attr("cursor", "move");
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151 });
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Fadi Abbud <fadi.abbud@intevation.de>
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152 eventRect.call(zoom).on("click", this.onClick);
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153
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Fadi Abbud <fadi.abbud@intevation.de>
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154 const toIsoDate = d => {
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Fadi Abbud <fadi.abbud@intevation.de>
parents:
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155 return d.toISOString();
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Fadi Abbud <fadi.abbud@intevation.de>
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156 };
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Fadi Abbud <fadi.abbud@intevation.de>
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157
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Fadi Abbud <fadi.abbud@intevation.de>
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158 let drag = d3
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Fadi Abbud <fadi.abbud@intevation.de>
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159 .drag()
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Fadi Abbud <fadi.abbud@intevation.de>
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160 .on("start", () => {
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Fadi Abbud <fadi.abbud@intevation.de>
parents:
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161 d3.select(".line")
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Fadi Abbud <fadi.abbud@intevation.de>
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162 .raise()
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Fadi Abbud <fadi.abbud@intevation.de>
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163 .classed("active", true);
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Fadi Abbud <fadi.abbud@intevation.de>
parents:
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164 })
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Fadi Abbud <fadi.abbud@intevation.de>
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165 .on("drag", this.onDrag)
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Fadi Abbud <fadi.abbud@intevation.de>
parents:
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166 .on("end", () => {
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167 d3.select(".line").classed("active", false);
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168 });
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169
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170 // Create cursor to indicate to the selected time
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Fadi Abbud <fadi.abbud@intevation.de>
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171 svg
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Fadi Abbud <fadi.abbud@intevation.de>
parents:
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172 .append("rect")
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parents:
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173 .attr("class", "line")
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Fadi Abbud <fadi.abbud@intevation.de>
parents:
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174 .attr("id", "scrubber")
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175 .attr("x", this.newX(d3.isoParse(toIsoDate(this.selectedTime))))
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176 .attr("y", 0)
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Fadi Abbud <fadi.abbud@intevation.de>
parents:
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177 .attr("width", 2)
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178 .attr("height", svgHeight)
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Fadi Abbud <fadi.abbud@intevation.de>
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179 .attr("stroke", "#17a2b8")
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180 .attr("stroke-width", 2)
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181 .attr("opacity", 0.6)
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182 .on("mouseover", () => {
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183 svg.select(".line").attr("cursor", "e-resize");
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184 })
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185 .call(drag);
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186 },
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187 getScale() {
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188 return d3
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Fadi Abbud <fadi.abbud@intevation.de>
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189 .scaleTime()
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Fadi Abbud <fadi.abbud@intevation.de>
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190 .range([0, document.getElementById("sliderContainer").clientWidth || 0])
5039
aec0923f9c52 icon shows now date and time
Thomas Junk <thomas.junk@intevation.de>
parents: 5038
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191 .domain([d3.isoParse(new Date("2015-01-01")), d3.isoParse(new Date())]);
5036
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192 },
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193 zoomed() {
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194 let scale = this.getScale();
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195 this.newX = d3.event.transform.rescaleX(scale);
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196 d3.select(".axis--x").call(
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197 d3.axisBottom(this.newX).ticks(12)
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198 //.tickFormat(dFormat)
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199 );
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200 d3.select(".line").attr("x", this.newX(d3.isoParse(this.selectedTime)));
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parents:
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201 },
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parents:
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202 onClick() {
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Fadi Abbud <fadi.abbud@intevation.de>
parents:
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203 // Extract the click location
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Fadi Abbud <fadi.abbud@intevation.de>
parents:
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204 let point = d3.mouse(document.getElementById("zoom")),
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205 p = { x: point[0], y: point[1] };
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206 d3.select(".line").attr("x", p.x);
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207 this.selectedTime = d3.isoParse(this.newX.invert(p.x + 2));
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parents:
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208 },
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209 onDrag() {
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210 this.selectedTime = d3.isoParse(this.newX.invert(d3.event.x + 2));
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parents:
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211 d3.select(".line").attr("x", d3.event.x);
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parents:
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212 }
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parents:
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213 },
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Fadi Abbud <fadi.abbud@intevation.de>
parents:
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214 mounted() {
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Fadi Abbud <fadi.abbud@intevation.de>
parents:
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215 setTimeout(this.createSlider, 150);
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Fadi Abbud <fadi.abbud@intevation.de>
parents:
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216 }
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Fadi Abbud <fadi.abbud@intevation.de>
parents:
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217 };
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Fadi Abbud <fadi.abbud@intevation.de>
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218 </script>