private InkData GetInkData()
{
var data = new InkData();
data.language = "zh-CN";
data.strokes = new List <InkStroke>();
int id = 0;
foreach (var stroke in this.inkCanvas.InkPresenter.StrokeContainer.GetStrokes())
{
var points = stroke.GetInkPoints();
var convertPoints = ConvertPixelsToMillimeters(points);
var inkStorke = new InkStroke();
inkStorke.id = id++;
var sb = new StringBuilder();
foreach (var point in convertPoints)
{
sb.Append(point.X);
sb.Append(",");
sb.Append(point.Y);
sb.Append(",");
}
inkStorke.points = sb.ToString().TrimEnd(',');
data.strokes.Add(inkStorke);
}
return(data);
}
/// <summary>
/// 开始识别笔迹
/// </summary>
/// <param name="imgPath"></param>
/// <returns></returns>
private async Task <string> InkRec(InkData data)
{
string inkRecognitionUrl = "/inkrecognizer/v1.0-preview/recognize";
string endPoint = "https://inkrec-01.cognitiveservices.azure.com/";
string subscriptionKey = "e51e7d9ff5ea4cf3bc5b24f2bc078c7e";
using (HttpClient client = new HttpClient {
BaseAddress = new Uri(endPoint)
})
{
System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", subscriptionKey);
var jsonData = JsonConvert.SerializeObject(data);
var content = new StringContent(jsonData, Encoding.UTF8, "application/json");
var res = await client.PutAsync(inkRecognitionUrl, content);
if (res.IsSuccessStatusCode)
{
var result = await res.Content.ReadAsStringAsync();
return(result);
}
else
{
var err = $"ErrorCode: {res.StatusCode}";
return(err);
}
}
}