Export chart as image
Let's start with a simple chart export. For exporting a single chart, save the chart configuration in a JSON file. The configuration should be inside an array. To export charts as images, you can use the CLI or SDKs of the languages mentioned below, using the command given below:
FusionExport CLI accepts a chart’s configuration using the --chart-config or -c options.
For exporting a single chart from the CLI, using a JSON file:
Step 1
Save the chart configuration in a JSON file named as chart-config-file.json
[
{
"type": "column2d",
"renderAt": "chart-container",
"width": "550",
"height": "350",
"dataFormat": "json",
"dataSource": {
"chart": {
"caption": "Number of visitors last week",
"subCaption": "Bakersfield Central vs Los Angeles Topanga"
},
"data": [
{
"label": "Mon",
"value": "15123"
},
{
"label": "Tue",
"value": "14233"
},
{
"label": "Wed",
"value": "25507"
}
]
}
}
]
Step 2
To export the file, run the following command from the terminal/command prompt:
$ fe -c chart-config-file.json
For exporting a single chart from the CLI, using a JS file:
Step 1
Save the chart configuration in a JavaScript file named as chart-config-file.js. In this case, the whole chart configuration object must be exported.
module.exports = {
// fusioncharts config
};
Step 2
To use this newly created JavaScript file for the export, execute the following command:
$ fe -c chart-config-file.js
// Exporting a chart
const path = require('path');
// Require FusionExport
const {
ExportManager,
ExportConfig
} = require('../');
// Instantiate ExportManager
const exportManager = new ExportManager();
// Instantiate ExportConfig and add the required configurations
const exportConfig = new ExportConfig();
exportConfig.set('chartConfig', path.join(dirname, 'resources', 'single.json'));
// provide the export config
exportManager.export(exportConfig);
// Called when export is done
exportManager.on('exportDone', (outputFileBag) => {
outputFileBag.forEach((op) => {
console.log(DONE: ${op.realName});
});
ExportManager.saveExportedFiles(outputFileBag);
});
// Called on each export state change
exportManager.on('exportStateChange', (state) => {
console.log([${state.reporter}] ${state.customMsg});
});
// Called on erroe
exportManager.on('error', (err) => {
console.error(err);
});
import com.fusioncharts.fusionexport.client.*; // import sdk
public class ExportChart {
public static void main(String[] args) throws Exception {
String configPath = "fullPath/resources/static2/resources/multiple.json";
// Instantiate the ExportConfig class and add the required configurations
ExportConfig config = new ExportConfig();
config.set("chartConfig", configPath);
// Instantiate the ExportManager class
ExportManager manager = new ExportManager(config);
// Call the export() method with the export config and the respective callbacks
manager.export(new ExportDoneListener() {
@Override
public void exportDone(ExportDoneData result, ExportException error) {
if (error != null) {
System.out.println(error.getMessage());
} else {
ExportManager.saveExportedFiles("fullPath", result);
}
}
},
new ExportStateChangedListener() {
@Override
public void exportStateChanged(ExportState state) {
System.out.println("STATE: " + state.reporter);
}
});
}
}
using System;
using System.IO;
using System.Linq;
using FusionCharts.FusionExport.Client; // Import sdk
namespace FusionExportTest {
public static class ExportSingleChart {
public static void Run(string host = Constants.DEFAULT_HOST, int port = Constants.DEFAULT_PORT) {
// Instantiate the ExportConfig class and add the required configurations
ExportConfig exportConfig = new ExportConfig();
exportConfig.Set("chartConfig", File.ReadAllText("./resources/chart-config-file.json"));
// Instantiate the ExportManager class
ExportManager em = new ExportManager(host: host, port: port);
// Call the Export() method with the export config and the respective callbacks
em.Export(exportConfig, OnExportDone, OnExportStateChanged);
}
// Called when export is done
static void OnExportDone(ExportEvent ev, ExportException error) {
if (error != null) {
Console.WriteLine("Error: " + error);
} else {
var fileNames = ExportManager.GetExportedFileNames(ev.exportedFiles);
Console.WriteLine("Done: " + String.Join(", ", fileNames)); // export result
}
}
// Called on each export state change
static void OnExportStateChanged(ExportEvent ev) {
Console.WriteLine("State: " + ev.state.customMsg);
}
}
}
<?php
// Exporting a chart
require DIR__ . '/../vendor/autoload.php';
// Use the sdk
use FusionExport\ExportManager;
use FusionExport\ExportConfig;
// Instantiate the ExportConfig class and add the required configurations
$exportConfig = new ExportConfig();
$exportConfig->set('chartConfig', realpath('resources/single.json'));
// Called on each export state change
$onStateChange = function ($event) {
$state = $event->state;
echo('STATE: [' . $state->reporter . '] ' . $state->customMsg . "\n");
};
// Called when export is done
$onDone = function ($event, $e) {
$export = $event->export;
if ($e) {
echo('ERROR: ' . $e->getMessage());
} else {
foreach ($export as $file) {
echo('DONE: ' . $file->realName. "\n");
}
ExportManager::saveExportedFiles($export);
}
};
// Instantiate the ExportManager class
$exportManager = new ExportManager();
// Call the export() method with the export config and the respective callbacks
$exportManager->export($exportConfig, $onDone, $onStateChange);
#!/usr/bin/env python
from fusionexport import ExportManager, ExportConfig # Import sdk
def read_file(file_path):
try:
with open(file_path, "r") as f:
return f.read()
except Exception as e:
print(e)
# Called when export is done
def on_export_done(event, error):
if error:
print(error)
else:
ExportManager.save_exported_files("exported_images", event["result"])
# Called on each export state change
def on_export_state_changed(event):
print(event["state"])
# Instantiate the ExportConfig class and add the required configurations
export_config = ExportConfig()
export_config["chartConfig"] = read_file("chart-config-file.json")
# Provide port and host of FusionExport Service
export_server_host = "127.0.0.1"
export_server_port = 1337
# Instantiate the ExportManager class
em = ExportManager(export_server_host, export_server_port)
# Call the export() method with the export config and the respective callbacks
em.export(export_config, on_export_done, on_export_state_changed)
// Exporting a chart
package main
import (
"fmt"
"github.com/fusioncharts/fusionexport-go-client"
)
// Called when export is done
func onDone(outFileBag []FusionExport.OutFileBag, err error) {
check(err)
FusionExport.SaveExportedFiles(outFileBag)
}
// Called on each export state change
func onStateChange(event FusionExport.ExportEvent) {
fmt.Println("[" + event.Reporter + "] " + event.CustomMsg)
}
func main() {
// Instantiate ExportConfig and add the required configurations
exportConfig := FusionExport.NewExportConfig()
exportConfig.Set("chartConfig", "example/resources/single.json")
// Instantiate ExportManager
exportManager := FusionExport.NewExportManager()
// Call the Export() method with the export config and the respective callbacks
exportManager.Export(exportConfig, onDone, onStateChange)
}
func check(e error) {
if e != nil {
panic(e)
}
}
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