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src/app/component/graph/graph.component.ts
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1af45d9
| ... | ... | @@ -62,7 +62,7 @@ export class GraphComponent implements OnInit { |
| 62 | 62 | break; |
| 63 | 63 | case 'time': |
| 64 | 64 | this.selectedVessel.messages.forEach(value => { |
| 65 | - this.trace.x.push(Date.parse(value.time) / 1000); | |
| 65 | + this.trace.x.push(Date.parse(value.time) / 1000 - this.selectedVessel.firstAppearance); | |
| 66 | 66 | }); |
| 67 | 67 | break; |
| 68 | 68 | case 'latitude': |
| ... | ... | @@ -152,7 +152,7 @@ export class GraphComponent implements OnInit { |
| 152 | 152 | break; |
| 153 | 153 | case 'time': |
| 154 | 154 | this.selectedVessel.messages.forEach(value => { |
| 155 | - this.trace.y.push(Date.parse(value.time) / 1000); | |
| 155 | + this.trace.y.push(Date.parse(value.time) / 1000 - this.selectedVessel.firstAppearance); | |
| 156 | 156 | }); |
| 157 | 157 | break; |
| 158 | 158 | case 'latitude': |
src/app/model/vessel.ts
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1af45d9
| ... | ... | @@ -2,13 +2,15 @@ import {Message} from './message'; |
| 2 | 2 | |
| 3 | 3 | export class Vessel { |
| 4 | 4 | messages: Array<Message>; |
| 5 | + firstAppearance: number; | |
| 5 | 6 | |
| 6 | 7 | constructor(messages: Array<Message>) { |
| 7 | 8 | this.messages = messages; |
| 8 | 9 | } |
| 9 | 10 | |
| 10 | 11 | addMessage(message: Message): void { |
| 11 | - this.messages.push(message); | |
| 12 | + this.messages.push(message); | |
| 13 | + this.determineFirstAppearance(message); | |
| 12 | 14 | } |
| 13 | 15 | |
| 14 | 16 | getMMSI(): string { |
| ... | ... | @@ -26,4 +28,11 @@ export class Vessel { |
| 26 | 28 | return '#' + (+this.getMMSI()).toString(16).substr(0, 6); |
| 27 | 29 | } |
| 28 | 30 | |
| 31 | + determineFirstAppearance(message: Message): void { | |
| 32 | + const timeInS = Date.parse(message.time) / 1000; | |
| 33 | + if (this.firstAppearance === undefined || this.firstAppearance > timeInS) { | |
| 34 | + this.firstAppearance = timeInS; | |
| 35 | + } | |
| 36 | + } | |
| 37 | + | |
| 29 | 38 | } |
src/app/model/vessels.ts
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1af45d9