Method update

viewer/public/js/ViewControls.js:269–325

(delta)

    }

    update(delta) {
        let factor = (1 - Math.exp(-delta / this.tau));

        this.currentMethod.updateReferences();
        this.currentMethod.computeReferences();
        let refRot = this.currentMethod.getReferenceRot();
        let refVp = this.currentMethod.getReferenceVp();
        let refDist = this.currentMethod.getReferenceDist();

        // Compute residuals
        let resPh = refRot.x - this.currentRot.x;
        let resTh = refRot.y - this.currentRot.y;
        let resPs = refRot.z - this.currentRot.z;

        if (resTh > Math.PI) {
            resTh -= Math.PI * 2;
            this.currentRot.y += Math.PI * 2
        }
        if (resTh < -Math.PI) {
            resTh += Math.PI * 2;
            this.currentRot.y -= Math.PI * 2
        }

        let resX = refVp.x - this.currentVp.x;
        let resY = refVp.y - this.currentVp.y;
        let resZ = refVp.z - this.currentVp.z;

        let resDist = refDist - this.currentDist;

        // Update variables
        this.currentRot.x += resPh * factor;
        this.currentRot.y += resTh * factor;
        this.currentRot.z += resPs * factor;
        this.currentVp.x += resX * factor;
        this.currentVp.y += resY * factor;
        this.currentVp.z += resZ * factor;
        this.currentDist += resDist * factor;

        // Apply to camera.
        this.camera.rotation.x = this.currentRot.x;
        this.camera.rotation.y = this.currentRot.y;
        this.camera.rotation.z = this.currentRot.z;

        let eye = new THREE.Vector3(0, 0, 0);
        eye.x = -Math.cos(this.currentRot.x) * Math.sin(this.currentRot.y);
        eye.y = Math.sin(this.currentRot.x);
        eye.z = -Math.cos(this.currentRot.x) * Math.cos(this.currentRot.y);

        let center = new THREE.Vector3();
        center.copy(this.currentVp);
        center.x -= eye.x * this.currentDist;
        center.y -= eye.y * this.currentDist;
        center.z -= eye.z * this.currentDist;
        this.camera.position.x = center.x;
        this.camera.position.y = center.y;
        this.camera.position.z = center.z;
    }
}